- openSUSE Security Announce

SuSE Security Announcement: Netscape
by draht＠suse.de 24 Aug '00

24 Aug '00

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: Netscape, Versions 4.x, possibly others Date: Wednesday, August 23rd, 2000 03:30 MEST Affected SuSE versions: All Vulnerability Type: remote file viewing, remote buffer overflow Severity (1-10): 4, 7 SuSE default package: yes Other affected systems: all linux systems using this package Content of this advisory: 1) security vulnerability resolved: Netscape problem description, discussion, solution and upgrade information 2) Correction/apology for perl thread, pending vulnerabilities, temporary workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information Two security problems exist in the netscape package as shipped with SuSE Linux distributions. a) Improper verification in Netscape's jpeg processing code can lead to a buffer overflow where data read from the network can overwrite memory. As a result, arbitrary code from a remote origin could be executed. The attack is particularly dangerous since it can penetrate firewall setups. Netscape version 4.74 fixes (fixed) this vulnerability. b) Due to an error in the java implementation in Netscape, it is possible for an attacker to view files and directories with the priviledges of the user running Netscape if the user visits a malisciously crafted webpage. This issue is known as "Brown Orifice" and requires the user to have Java enabled in her browser configuration. Again, this attack can penetrate firewall setups. See http://www.brumleve.com/BrownOrifice for details. Problem a) can be circumvented by disabling the automatic image loading in Netscape's configuration. The temporary workaround for problem b) is to disable Java in Netscape's configuration menu (to protect against other vulnerabilities, disable JavaScript, too!). Both countermeasures may widely be found inacceptable. SuSE provides an updated package for the vulnerable software. It is strongly recommended to upgrade to the latest version found on our ftp server as described below. The update package introduces Netscape version 4.75, including the SuSE-specific libraries that fix some of Netscape's "irregular" behaviour. Please note that Netscape-4.75 is not available for the glibc-2.0-based SuSE Distributions SuSE-6.0 and 6.1 because Netscape doesn't provide any files for this glibc version. For these distributions, we provide Netscape Version 4.74 which fixes problem a) only. Alternatively, the package for the libc5-based SuSE-5.3 distribution can be used as well if the package 'shlibs5' is installed. This is recommended, since the 5.3 package may be faster and more reliable. Download the update package as described below and install the package with the command `rpm -Fhv file.rpm'. The md5sum for each file is in the line below. You can verify the integrity of the rpm files using the command `rpm --checksig --nogpg file.rpm', independently from the md5 signatures below. Due to US-American export restrictions for cryptographical software, we are unable to provide update packages on our US ftp server ftp.suse.com. Instead, the packages can be found on ftp.suse.de. For bandwidth reasons, please use our mirrors or our primary mirror ftp.gwdg.de and follow the directory to your distribution. Example: For SuSE-6.4 use the path ftp://ftp.gwdg.de/pub/linux/suse/6.4_update_de/xap1/netscape.rpm. *********************************************************************** Please note that the path to netscape.rpm in the 6.0 and 6.1 update directories point to Netscape version 4.74 which doesn't fix problem b! See section above! *********************************************************************** Further mirrors can be found at http://www.suse.de/de/support/download/ftp/inland.html, but be advised that not all sites mirror the German part of the update directories. md5sums for the i386 Intel Platform (the only one supported): SuSE Versions 6.2, 6.3, 6.4, 7.0: 70289f88b4c9fc1a9867ba7dac985982 netscape-4.75.glibc21.i386.rpm SuSE Version 5.3 (libc5-based, probably faster, can be used on glibc2-based systems if the package shlibs5 is installed) 679aaf67592244a07733bdabdab67729 netscape-4.75.libc5.i386.rpm SuSE Version 6.0 and 6.1, Netscape-4.74 with incomplete fixes: 4bcc31fe37f7c8d226b437c1daa9b944 netscape-4.74.glibc20.i386.rpm ______________________________________________________________________________ 2) Correction/Apology: In my posting to suse-security(a)suse.de and to bugtraq(a)securityfocus.com about the suidperl thread, Subject: "SuSE Security Announcement: suidperl (perl)", dated 10 Aug 2000, I wrote: "A maliciously implemented feature causes the interpreter to spawn the /bin/mail program to"..." This is a bad and embarrassing mistake because of a confusion about the word "maliciously" in this context - it was meant to read "inconsiderate". I apologize to the perl folks for this mistake. Pending vulnerabilities in SuSE Distributions and Workarounds: This section addresses currently known vulnerabilities in Linux/Unix systems that have not been resolved yet as of the release date of this advisory. - ntop ntop is a network statistics visualization utility which offers graphical analysis of network traffic and other statistics with a web browser. By default, ntop listens on port 3000 and requires no or a commonly known authentication password to view the data. ntop is only installed in network server selections and is not activated by default in SuSE Linux installations. The ntop packages shipped with SuSE Linux did not exhibit the unsafe behaviour when a file like /../../etc/passwd is referenced. However, Thomas Biege has reviewed the source of the package and there are still some potential problems with the package that require a major overhaul of the code. Currently, we recommend to disable or even remove the ntop package (`rpm -e ntop') in an environment where security considerations play a role. More information on ntop can be found in ntop's documentation directory /usr/doc/packages/ntop or /usr/share/doc/packages/ntop for SuSE-7.0. - zope SuSE distributions before 7.0 do not contain zope as a package. An updated package for the freshly released SuSE-7.0 is on the way. - xchat A fix for the URL handler vulnerabilty is in progress and will be released within a few days. There is currently no effective and easy workaround other than removing the package by hand (`rpm -e xchat'). More information on xchat can be found in xchat's documentation directory /usr/doc/packages/xchat or /usr/share/doc/packages/xchat for SuSE-7.0. - minicom SuSE's minicom doesn't exhibit the problem with files created belonging to group uucp because /usr/bin/minicom isn't installed sgid uucp by default. Changing this to 2755 root.uucp (manually and in /etc/permissions) doesn't show any defective behaviour either. - xlockmore: After a review of the relevant part of xlock's code we've found that the format string parsing bug posted by bind(a)SUBTERRAIN.NET on bugtraq on August 15th 2000 is not critical wrt security. xlock drops all privs as soon as it could get hold of the user's encrypted password (which is before it crashes). Other encrypted passwords can't be found in xlock's memory. Since xlock on SuSE distributions runs sgid shadow, it can't dump a core file upon segmentation fault (search /usr/src/linux/kernel/sys.c for "dumpable".) and also can't be traced (/usr/src/linux/arch/i386/kernel/ptrace.c). The bug will be fixed in future releases of the SuSE Linux distribution. The following packages are not contained in SuSE distributions. Therefore, they do not impose any security risks on SuSE systems unless an administrator installed (compiled) the vulnerable software by hand. - FlagShip permissions, from Narrow <nss(a)privacyx.com> on bugtraq dated 10 Aug 2000 - VariCAD permissions with RedHat 6.0, from Narrow <nss(a)privacyx.com> on bugtraq dated 10 Aug 2000 - usermode, from Connectiva on bugtraq, dated 2000-08-10 - gopherd 2.x, from Mike Schiffman <michael.schiffman(a)guardent.com> (guardent) on bugtraq, dated 10 Aug 2000, + Chris Sharp <v9(a)FAKEHALO.ORG> on bugtraq dated 20 Aug 2000. - diskcheck perl script, Connectiva sec. adv. on bugtraq dated 2000-08-10 - Statistics Server 5.02x, overflow, from |Zan <izan(a)DEEPZONE.ORG> on bugtraq, dated 10 Aug 2000 - Helix GNOME Updater (helix-update), versions 0.1 through 0.5, from HELIX CODE, INC., on bugtraq, dated 20 Aug 2000 - Darxite overflows, from Guido Bakker <guidob(a)MAINNET.NL> on bugtraq, dated 21 Aug 2000 - Gnome-Lokkit ports left exposed, from Alan Cox <alan(a)LXORGUK.UKUU.ORG.UK> on bugtraq dated 19 Aug 2000 ______________________________________________________________________________ 3) standard appendix: SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =============================================== SuSE's security contact is <security(a)suse.com>. =============================================== Regards, Roman Drahtmüller. - - -- - - | Roman Drahtmüller <draht(a)suse.de> // "Caution: Cape does | SuSE GmbH - Security Phone: // not enable user to fly." | Nürnberg, Germany +49-911-740530 // (Batman Costume warning label) | - - ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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SuSE Security Announcement: suidperl (perl)
by draht＠suse.de 10 Aug '00

10 Aug '00

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: perl, all versions Date: Thursday, August 10th, 2000 Affected SuSE versions: 6.0-6.4, 7.0 Vulnerability Type: local root compromise Severity (1-10): 5 SuSE default package: yes, but not configured exploitable. Other affected systems: all linux systems using this package Content of this advisory: 1) security vulnerability resolved: suidperl (local root compromise) problem description, discussion, solution and upgrade information 2) pending vulnerabilities, temporary workarounds (Netscape) 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information suidperl is the perl interpreter for suid perl scripts, a part of the perl package. A maliciously implemented feature causes the interpreter to spawn the /bin/mail program to inform the superuser of its usage, thereby passing on untrusted environment that causes /bin/mail to execute arbitrary commands as user root. SuSE distributions are not susceptible to this problem because /usr/bin/suidperl is mode 755 (not suid) by default. Administrators must explicitly have enabled suidperl by changing the permission modes of the interpreter to 4755 root.root (suid root) for the exploit mechanism to work. In SuSE-Linux, activating suidperl is done by changing one of the files /etc/permissions.(easy|secure) and running SuSEconfig or `chkstat -set /etc/permissions.(easy|secure)', alternatively, depending on the setting of PERMISSION_SECURITY in /etc/rc.config. If SuSEconfig is turned off completely, the administrator of the system is obliged to change the permission modes by hand. The decision to not activate suidperl has been made because security problems were expected in the wild. O/S vendors have provided updated packages for both suidperl and mailx, the package containing /bin/mail. Basically, /bin/mail's fetures are not the origin of the security hole because the hostile environment is passed on by the suidperl interpreter, despite the fact that the interpreter runs suid root. Note: The upcoming SuSE-7.0 distribution _is_ vulnerable to the problem of this advisory if /usr/bin/suidperl is setuid root. However, suidperl is installed with mode 755 after the installation like in older SuSE Linux distributions and therefore can't be exploited without prior manual activation of suidperl by the system administrator. SuSE provides an updated package for the vulnerable software. It is strongly recommended to upgrade to the latest version found on our ftp server as described below. The package removes the mail notification and uses the syslog facility (priority warning) instead. Chose one of the following paths to download the package from our ftp server and install the package with the command `rpm -Fhv file.rpm'. The md5sum for each file is in the line below. You can verify the integrity of the rpm files using the command `rpm --checksig --nogpg file.rpm', independently from the md5 signatures below. i386 Intel Platform: SuSE-7.0 ftp://ftp.suse.com/pub/suse/i386/update/7.0/a1/perl.rpm 01c855f752b835536403c7bcc74d8114 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/perl.spm 16c850efed03cc5bd5b9bff3910dd6e4 SuSE-6.4 ftp://ftp.suse.com/pub/suse/i386/update/6.4/a1/perl.rpm 0640e11ba0b87f0d8a01b4b5dedbb8eb source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/perl.spm a68ade45a65e73805b2276ad35266d46 SuSE-6.3 ftp://ftp.suse.com/pub/suse/i386/update/6.3/a1/perl.rpm 7a3c2adae0c556a7ccb647eaca34e6c7 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/perl.spm 6bc207d360a1349f8f8067a83061f848 SuSE-6.2 ftp://ftp.suse.com/pub/suse/i386/update/6.2/a1/perl.rpm 6403b21d3795def485ad4a577a38c3be source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/perl.spm 47760a9798dc1489ca9fd2ee3a1756f6 SuSE-6.1 ftp://ftp.suse.com/pub/suse/i386/update/6.1/a1/perl.rpm ac14b4fccfb10e5465f377b095621730 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.1/zq1/perl.spm 7d3aec7879fabcac3d2b7e4996340c31 AXP Alpha Platform: SuSE-6.4 ftp://ftp.suse.com/pub/suse/axp/update/6.4/a1/perl.rpm 47853649c4683748558dbb72f759d739 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/perl.spm 5949a68b6126afdca98224cd6ed4be74 SuSE-6.3 ftp://ftp.suse.com/pub/suse/axp/update/6.3/a1/perl.rpm 994804e426adf718df64162c92a1ce84 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/perl.spm 879238a9e443bbe32cc4d421ed9a5d28 SuSE-6.1 ftp://ftp.suse.com/pub/suse/axp/update/6.1/a1/perl.rpm cf2d763fb562a75395c5e613704cbd10 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.1/zq1/perl.spm e0aa5d0c91f474592e56eed2a8b3fae0 PPC Power PC Platform: SuSE-6.4 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/a1/perl.rpm 828a210ef2b3aa462161010d4d19416a source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/perl.spm 9253498d7c474ad2e9f8dabe576d2c96 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds This section addresses currently known vulnerabilities in Linux/Unix systems that have not been resolved up to the release date of this advisory. - Netscape, versions from 3.0 to 4.73: The latest version of Netscape is currently being tested. SuSE Netscape rpms contain efficient workarounds against some "morbid" properties of Netscape in order to provide stable packages. These additions are being reworked right now. Also, cryprographical software export regulations require us to wait for the permission to redistribute the netscape package from our US-American ftp server. There are currently two known vulnerabilities in Netscape versions from 3.0 to 4.73: a) a buffer overflow in the jpeg image handling code b) a security flaw in Netscape's Java implementation a) has been fixed in Netscape version 4.74. Updated packages from SuSE will follow very soon. Temporary fix/workaround: problem a) Turn off automatic image loading and do not click on images to trigger the download. This may be a fairly unsatisfying solution. problem b) Turn off Java and JavaScript. - ntop ntop is a network statistics visualization utility which offers graphical analysis of network traffic and other statistics with a web browser. By default, ntop listens on port 3000 and requires no or a commonly known authentication password to view the data. ntop is only installed in network server selections and is not activated by default in SuSE Linux installations. The ntop packages shipped with SuSE Linux did not exhibit the unsafe behaviour when a file like /../../etc/passwd is referenced. ______________________________________________________________________________ 3) standard appendix: SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =============================================== SuSE's security contact is <security(a)suse.com>. =============================================== Regards, Roman Drahtmüller. - -- - - | Roman Drahtmüller <draht(a)suse.de> // "Caution: Cape does | SuSE GmbH - Security Phone: // not enable user to fly." | Nürnberg, Germany +49-911-740530 // (Batman Costume warning label) | - - ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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SuSE Security Announcement: rpc.kstatd (knfsd)
by draht＠suse.de 10 Aug '00

10 Aug '00

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: knfsd, all versions Date: Thursday, August 10th, 2000 Affected SuSE versions: 6.1-6.4 Vulnerability Type: remote root compromise Severity (1-10): 9 SuSE default package: yes Other affected systems: all linux systems using this package Content of this advisory: 1) security vulnerability resolved: knfsd (remote root compromise) problem description, discussion, solution and upgrade information 2) pending vulnerabilities, temporary workarounds (Netscape, suidperl) 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information Due to incorrect string parsing in the code, a remote attacker could gain root priviledges on the machine running the vulnerable rpc.kstatd. The rpc.kstatd daemon contained in the package linuxnfs (SuSE-6.1, 6.2) or knfsd (SuSE-6.3, 6.4) is used by the NFS file locking service to implement lock recovery when the NFS server crashes or reboots. The network status monitor as shipped with SuSE distributions including and following SuSE-6.1 is called `rpc.kstatd' in order not to confuse it with the `rpc.rstatd', the kernel statistics server that comes with SuSE, too (See manual pages for rpc.kstatd and rpc.rstatd). Other distributors might use the term `rpc.statd'. Note: The upcoming SuSE-7.0 distribution is _not_ vulnerable to the problem with rpc.kstatd. SuSE provides updated packages for the vulnerable software. It is strongly recommended to upgrade to the latest version found on our ftp server as described below. For the kernel-based NFS server to operate properly, it is strongly recommended to upgrade to the latest kernel version as announced in http://www.suse.de/de/support/security/suse_security_announce_54.txt . Chose one of the following paths to download the package from our ftp server and install the package with the command `rpm -Fhv file.rpm'. The md5sum for each file is in the line below. You can verify the integrity of the rpm files using the command `rpm --checksig --nogpg file.rpm', independently from the md5 signatures below. i386 Intel Platform: SuSE-6.4 (package name is knfsd!): ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/knfsd.rpm 1a7214f921ebeea7bbcfce8187e7ba65 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/knfsd.spm fa4bb28382515648f1c667cbbc019695 SuSE-6.3 (package name is knfsd!): ftp://ftp.suse.com/pub/suse/i386/update/6.3/n1/knfsd.rpm 9425557d97676df139c3b3cfbcbfb686 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/knfsd.spm 1d4f69b00eedee3530cbd14ede55b985 SuSE-6.2 (package name is linuxnfs!): ftp://ftp.suse.com/pub/suse/i386/update/6.2/n1/linuxnfs.rpm c4fbbcbdac7c8640b8ff92643e666ea2 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/linuxnfs.spm 7a006bcc0a8132e8a35e43c087edd493 SuSE-6.1 (package name is linuxnfs!): ftp://ftp.suse.com/pub/suse/i386/update/6.1/n1/linuxnfs.rpm e4ae4db716613a94d7f5a2acc5f4ee05 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.1/zq1/linuxnfs.spm 879318dd2985fc29d879691044ccc982 AXP Alpha Platform: SuSE-6.4 (package name is knfsd!): ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/knfsd.rpm 6596ee4207f3f03b570a872af714a263 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/knfsd.spm 14d8c202a1d136e7d88ae02e428925a1 SuSE-6.3 (package name is knfsd!): ftp://ftp.suse.com/pub/suse/axp/update/6.3/n1/knfsd.rpm 728896064200e3fe2e303eba3246a295 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/knfsd.spm 6e755c651af95c4f8fd05138a373e8f3 SuSE-6.1 (package name is linuxnfs!): ftp://ftp.suse.com/pub/suse/axp/update/6.1/n1/linuxnfs.rpm 589a11bd867608cb00c93f4b91ba6dce source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.1/zq1/linuxnfs.spm 8196c617e9585a4906407bf666055508 PPC Power PC Platform: SuSE-6.4 (package name is knfsd!): ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/knfsd.rpm 52d64f1104530dac74ab03c508aa2ff4 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/knfsd.spm 5cdff95c21484fe01552a0ed80252adc ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds This section addresses currently known vulnerabilities in Linux/Unix systems that have not been resolved up to the release date of this advisory. - Netscape, versions from 3.0 to 4.73: The latest version of Netscape is currently being tested. SuSE Netscape rpms contain efficient workarounds against some "morbid" properties of Netscape in order to provide stable packages. These additions are being reworked right now. Also, cryprographical software export regulations require us to wait for the permission to redistribute the netscape package from our US-American ftp server. There are currently two known vulnerabilities in Netscape versions from 3.0 to 4.73: a) a buffer overflow in the jpeg image handling code b) a security flaw in Netscape's Java implementation a) has been fixed in Netscape version 4.74. Updated packages from SuSE will follow soon. Temporary fix/workaround: problem a) Turn off automatic image loading and do not click on images to trigger the download. problem b) Turn off Java and JavaScript. - suidperl The /usr/bin/suidperl perl interpreter in the SuSE Distributions has file permissions 755 by default. If the admin of a SuSE Linux system did not change the permission modes and/or the respective entry in /etc/permissions*, the SuSE Linux system is not vulnerable to the attack as published on bugtraq. An advisory announcing updated suidperl packages follows this announcement on the way to the mailing lists. Further details will be discussed therein. Temporary fix/workaround: chmod -s /usr/bin/suidperl # this is the default. ______________________________________________________________________________ 3) standard appendix: SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =============================================== SuSE's security contact is <security(a)suse.com>. =============================================== Regards, Roman Drahtmüller. - -- - - | Roman Drahtmüller <draht(a)suse.de> // "Caution: Cape does | SuSE GmbH - Security Phone: // not enable user to fly." | Nürnberg, Germany +49-911-740530 // (Batman Costume warning label) | - - ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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SuSE Security: miscellaneous
by draht＠suse.de 03 Aug '00

03 Aug '00

-----BEGIN PGP SIGNED MESSAGE----- August 3rd, 2000 This notice addresses the latest security advisories from various Linux Vendors as well as private contributors. The list of packages: netscape knfsd system user account nobody pam_console gpm openldap mailman cvsweb.cgi kon2 There will be SuSE Security Announcements for the packages where work is in progress as indicated in the respective section below. * jpeg buffer overflows in netscape: The latest version of netscape is currently being tested. SuSE netscape rpms contain efficient workarounds against some "morbid" properties of netscape - it is necessary to provide stable packages. These additions are being reworked right now. _________________________________________________________________________ * rpc.kstatd The SuSE package containing rpc.kstatd (other vendors named it rpc.statd) is called knfsd.rpm. An updated package is currently being tested. _________________________________________________________________________ * user `nobody's HOME directory set to / and misconfigured webservers: SuSE Linux used to have user nobody's HOME directory set to /tmp for years. Starting with SuSE-7.0, it will be set to /var/lib/nobody . Apache, as distributed with SuSE, is configured `UserDir public_html' and is therefore not vulnerable for the http://machine/~nobody/-problem. However, we encourage admins to change this user's home using the commands mkdir -p /var/lib/nobody chown nobody.nogroup /var/lib/nobody usermod -d /var/lib/nobody Make sure that you move files belonging to user nobody from the former location to the new home and that you don't rely on the old absolute path in your scripts. _________________________________________________________________________ * problems around pam_console: SuSE Linux does not contain the said pam-module because it isn't included in the official pam release. The idea of it is intriguing, but we have decided not to include the module into the distribution as a consequence of the problems that accompany its use. See Linux-Mandrake Security Update Advisory ID MDKSA-2000:029. _________________________________________________________________________ * gpm DoS, setgid() return value: We ship a slightly older version of gpm because of some grief with the latest versions. The vulnerabilities in gpm have been addressed to the fully necessary extent back in April 5. As mentioned above, there is no pam_console module that could change the ownerships of the gpm control socket /dev/gpmctl. By consequence, a local denial of service attack against gpm is possible. However, we believe that the most effective measure against this is userdel(8), since hogging disk space/performance, CPU, bandwidth etc is still possible in the wild even with appropriate permissions on the gpm socket. _________________________________________________________________________ * modes of openldap package files: The files are installed 755 or 644. There is no problem with this package in SuSE-Linux. _________________________________________________________________________ * mailman problem cvsweb.cgi (TurboLinux Advisory ID#: TLSA2000016-1): kon2 (Linux-Mandrake Security Update Advisory ID: MDKSA-2000:028) SuSE-Linux either does not contain these packages or the files therein causing the publically announced security vulnerabilities. _________________________________________________________________________ Regards, Roman Drahtmüller. - -- - - | Roman Drahtmüller <draht(a)suse.de> // "Caution: Cape does | SuSE GmbH - Security Phone: // not enable user to fly." | Nürnberg, Germany +49-911-740530 // (Batman Costume warning label) | - - Type Bits/KeyID Date User ID pub 2048/3D25D3D9 1999/03/06 SuSE Security Team <security(a)suse.de> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: 2.6.3i mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12Cg== =pIeS - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBOYnpPney5gA9JdPZAQEUOQf8DKKIHhn7oUvTW5Ol7gww2/aIwXmG2e5c 4iKyQgGoU94YZURlGxRRI5Zf1Yydfj8JrKiUvnwxRCcQF2WWWCWkGNqQkJzt+c00 BiEyU16fklxMV17JeI6zmb9rTrne0JftjAycAPubzYeDpheVDbmPtGvotanRwVUn j2zaE3uLIBjie2025q8nZnYeTylXua4ulnTW0+PFDZnWgyxCMXvvu/1Lsf715vi6 1M6L78IlYkng5OV4OTeBVY5gm7sdy3eg/CQ/FiEHmIDgI33ywRVGQhXqhpp3QOrX OA7UoIl6xAhNHBEX9lSPwNpfFaTsQrEAWVbihnzFYSLlBz3kxd1jdQ== =5DM/ -----END PGP SIGNATURE-----

1 0

SuSE Security Announcement: nkitb
by thomas＠suse.de 17 Jul '00

17 Jul '00

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: nkitb < 2000.7.11-0 Date: Fri Jul 14 14:38:37 CEST 2000 Affected SuSE versions: 6.1-6.4 Vulnerability Type: (possible) remote root compromise SuSE default package: yes Other affected systems: all linux systems using this package ______________________________________________________________________________ A security hole was discovered in the package mentioned above. Please update it as soon as possible or disable the service if you are using this software on your SuSE Linux installation(s). Other Linux distributions or operating systems might be affected as well, please contact your vendor for information about this issue. Please note that we provide this information on an "as-is" basis only. There is no warranty whatsoever and no liability for any direct, indirect or incidental damage arising from this information or the installation of the update package. _____________________________________________________________________________ 1. Problem Description The standard ftp server does directly pass untrusted data from a DNS server to the setproctitle() function in a unsecure manner. 2. Impact It may be possible for an attacker to modify his/her DNS record to execute abitrary machine code as root while connecting to the standard ftp daemon. 3. Solution Update the package from our FTP server. ______________________________________________________________________________ Please verify these md5 checksums of the updates before installing: (For SuSE 6.0, please use the 6.1 updates) AXP: 77ee118ac0790b775c08cecf28b3f5c3 ftp://ftp.suse.com/pub/suse/axp/update/6.3/a1/nkitb-2000.7.11-1.alpha.rpm 5eac90efb3c82a948b7843a8d29b1c65 ftp://ftp.suse.com/pub/suse/axp/update/6.4/a1/nkitb-2000.7.11-0.alpha.rpm i386: c85b8c047395f87a61fe7ef1938facd6 ftp://ftp.suse.com/pub/suse/i386/update/6.1/a1/nkitb-2000.7.11-0.i386.rpm 9fec7f48504f7c4134ac1ae78ee99060 ftp://ftp.suse.com/pub/suse/i386/update/6.2/a1/nkitb-2000.7.11-0.i386.rpm 34540a50d4a562b02fbb4bc56f23e1b6 ftp://ftp.suse.com/pub/suse/i386/update/6.3/a1/nkitb-2000.7.11-0.i386.rpm 118075b7fc295be86b3659bf9b3fa778 ftp://ftp.suse.com/pub/suse/i386/update/6.4/a1/nkitb-2000.7.11-0.i386.rpm PPC: 9ab22ed85cf0efb875c0c4f8fc878c3d ftp://ftp.suse.com/pub/suse/ppc/update/6.3/a1/nkitb-2000.7.11-0.ppc.rpm 61608e1f8e8bd4f20d9f47bea6a70740 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/a1/nkitb-2000.7.11-0.ppc.rpm ______________________________________________________________________________ You can find updates on our ftp-Server: ftp://ftp.suse.com/pub/suse/i386/update for Intel processors ftp://ftp.suse.com/pub/suse/axp/update for Alpha processors or try the following web pages for a list of mirrors: http://www.suse.de/ftp.html http://www.suse.com/ftp_new.html Our webpage for patches: http://www.suse.de/patches/index.html Our webpage for security announcements: http://www.suse.de/security If you want to report vulnerabilities, please contact security(a)suse.de ______________________________________________________________________________ SuSE runs two free security mailing list services to which any interested party may subscribe: use-security(a)suse.com - moderated and for general/linux/SuSE security discussions. All SuSE security announcements are sent to this list. use-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe to the list, send a message to: <suse-security-subscribe(a)suse.com> To remove your address from the list, send a message to: <suse-security-unsubscribe(a)suse.com> Send mail to the following for info and FAQ for this list: <suse-security-info(a)suse.com> <suse-security-faq(a)suse.com> _____________________________________________________________________________ This information is provided freely to everyone interested and may be redistributed provided that it is not altered in any way. 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SuSE Security Announcement: dhclient
by thomas＠suse.de 11 Jul '00

11 Jul '00

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: dhclient < 2.0 Date: Tue Jul 11 15:12:22 CEST 2000 Affected SuSE versions: 6.1-6.4 Vulnerability Type: remote root compromise SuSE default package: no Other affected systems: all unix systems using this package ______________________________________________________________________________ A security hole was discovered in the package mentioned above. Please update it as soon as possible or disable the service if you are using this software on your SuSE Linux installation(s). Other Linux distributions or operating systems might be affected as well, please contact your vendor for information about this issue. Please note that we provide this information on an "as-is" basis only. There is no warranty whatsoever and no liability for any direct, indirect or incidental damage arising from this information or the installation of the update package. _____________________________________________________________________________ 1. Problem Description The client side program of the ISC DHCP package, dhclient, does not do quoting of server messages before passing them to /sbin/dhclient-script. This script is executed with root privileges. 2. Impact Dhclient could be tricked by a rogue DHCP server to execute commands as user root. This leads to a remote root compromise of the system using dhclient. 3. Solution Update the package from our FTP server. ______________________________________________________________________________ Please verify these md5 checksums of the updates before installing: (For SuSE 6.0, please use the 6.1 updates) AXP: 262677203e3b1dada23e65ae60d08264 ftp://ftp.suse.com/pub/suse/axp/update/6.3/n1/dhclient-2.0pl2-3.alpha.rpm 910097426b5771c82abf8f323086b5ba ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/dhclient-2.0pl2-3.alpha.rpm i386: 300a7c8220d3b9f65a2aef3ed4fdb7b3 ftp://ftp.suse.com/pub/suse/i386/update/6.1/n1/dhclient-2.0pl2-3.i386.rpm 7be68cd54e7fd3766b7eb36fc2e854c5 ftp://ftp.suse.com/pub/suse/i386/update/6.2/n1/dhclient-2.0pl2-3.i386.rpm 44fad0cee0cb53627ed7c507077d5d2b ftp://ftp.suse.com/pub/suse/i386/update/6.3/n1/dhclient-2.0pl2-3.i386.rpm 320d4414841e29bd08584fc5d8592d99 ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/dhclient-2.0pl2-3.i386.rpm PPC: a8a19501e4821ab6c7b375972eb1e5ce ftp://ftp.suse.com/pub/suse/ppc/update/6.3/n1/dhclient-2.0pl2-3.ppc.rpm b4ea052ba25b10586cc14f6fea5b2d9f ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/dhclient-2.0pl2-3.ppc.rpm ______________________________________________________________________________ You can find updates on our ftp-Server: ftp://ftp.suse.com/pub/suse/i386/update for Intel processors ftp://ftp.suse.com/pub/suse/axp/update for Alpha processors or try the following web pages for a list of mirrors: http://www.suse.de/ftp.html http://www.suse.com/ftp_new.html Our webpage for patches: http://www.suse.de/patches/index.html Our webpage for security announcements: http://www.suse.de/security If you want to report vulnerabilities, please contact security(a)suse.de ______________________________________________________________________________ SuSE has got two free security mailing list services to which any interested party may subscribe: use-security(a)suse.com - moderated and for general/linux/SuSE security discussions. All SuSE security announcements are sent to this list. use-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe to the list, send a message to: <suse-security-subscribe(a)suse.com> To remove your address from the list, send a message to: <suse-security-unsubscribe(a)suse.com> Send mail to the following for info and FAQ for this list: <suse-security-info(a)suse.com> <suse-security-faq(a)suse.com> _____________________________________________________________________________ This information is provided freely to everyone interested and may be redistributed provided that it is not altered in any way. Type Bits/KeyID Date User ID pub 2048/3D25D3D9 1999/03/06 SuSE Security Team <security(a)suse.de> - ------BEGIN PGP PUBLIC KEY BLOCK----- Version: 2.6.3i mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12Cg== =pIeS - ------END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBOWsm93ey5gA9JdPZAQHseQf9EfascZdwdTCEgeCVELHPYjERcwQeXcb8 nisoW6eXveVVR1FaVpuX/gUeh5u4WNfyBNMuYQV1p7+0gis5f59vFJ7IxFWV/TLm h24/bx7TjufPCCFW16Ye1GWrGb5TIVdC6ORYV4A4BY74sByiKazlFbtT9qAtcAjD kqmbdIFwc1b0rYIREr1WGdwr1tfNVsRUJgKdyAco+miKXGjwM8rGw415A9o1zsrI OjC3sNeDDQi64uEFyODsr/LZpt06HFu0cNif4RbPi2LEd4UTfE2CNj5WGHq7NeEM XFjQ9+fp4/m4mngAsM7/RrlHoNQ09lOdmF7Dj8jWJS4r0c2pKuDzaQ== =ksUb -----END PGP SIGNATURE-----

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SuSE Security Announcement: tnef
by thomas＠suse.de 11 Jul '00

11 Jul '00

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: tnef < 0-124 Date: Mon Jul 10 19:19:16 CEST 2000 Affected SuSE versions: 6.3-6.4 Vulnerability Type: remote compromise SuSE default package: no Other affected systems: all unix systems using this package ______________________________________________________________________________ A security hole was discovered in the package mentioned above. Please update it as soon as possible or disable the service if you are using this software on your SuSE Linux installation(s). Other Linux distributions or operating systems might be affected as well, please contact your vendor for information about this issue. Please note that we provide this information on an "as-is" basis only. There is no warranty whatsoever and no liability for any direct, indirect or incidental damage arising from this information or the installation of the update package. _____________________________________________________________________________ 1. Problem Description Tnef extracts eMails compressed with MS-Outlook. The compressed file includes the path name to which the decompressed data should be written. 2. Impact By specifing a path name like /etc/passwd and sending a compressed mail to root an adversary could gain remote root access to a system by overwriting the local password database. The same could happen if a mail virus scanner, like AMaVIS, process' a malicious mail. 3. Solution Update the package from our FTP server. It's also possible to use the '-x' option of tnef to specify the outputfile. ______________________________________________________________________________ Please verify these md5 checksums of the updates before installing: AXP: cc4983da1084c911998ddcc589050ec2 ftp://ftp.suse.com/pub/suse/axp/update/6.3/ap1/tnef-0-124.alpha.rpm ae9b2d0e3231ee9ce35ee2fe0bd7788d ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/tnef-0-124.src.rpm 451485d86daa2b45ae897dc88bf8a61b ftp://ftp.suse.com/pub/suse/axp/update/6.4/ap1/tnef-0-124.alpha.rpm 4bd689ba7abb7235b84570a90b3875d8 ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/tnef-0-124.src.rpm i386: 5909688f8568eb1f14591c1428235777 ftp://ftp.suse.com/pub/suse/i386/update/6.3/ap1/tnef-0-124.i386.rpm 5c02ff06d98030541afb10c178a206f3 ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/tnef-0-124.src.rpm 58fa8e976df90aa09c30bf8fd5f6b2b5 ftp://ftp.suse.com/pub/suse/i386/update/6.4/ap1/tnef-0-124.i386.rpm 1a99d0cd8315ae3a1990781b7977c4c6 ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/tnef-0-124.src.rpm PPC: 3be0b423e678923f27c42f8c59c09ab4 ftp://ftp.suse.com/pub/suse/ppc/update/6.3/ap1/tnef-0-124.ppc.rpm 5f7f8c3c025c2f114aa115532e250723 ftp://ftp.suse.com/pub/suse/ppc/update/6.3/zq1/tnef-0-124.src.rpm b37d6374a7b0147dbd6bf9889ec68367 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/ap1/tnef-0-124.ppc.rpm 695fcd009a345638f049200dc0d6279d ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/tnef-0-124.src.rpm ______________________________________________________________________________ You can find updates on our ftp-Server: ftp://ftp.suse.com/pub/suse/i386/update for Intel processors ftp://ftp.suse.com/pub/suse/axp/update for Alpha processors or try the following web pages for a list of mirrors: http://www.suse.de/ftp.html http://www.suse.com/ftp_new.html Our webpage for patches: http://www.suse.de/patches/index.html Our webpage for security announcements: http://www.suse.de/security If you want to report vulnerabilities, please contact security(a)suse.de ______________________________________________________________________________ SuSE has got two free security mailing list services to which any interested party may subscribe: use-security(a)suse.com - moderated and for general/linux/SuSE security discussions. All SuSE security announcements are sent to this list. use-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe to the list, send a message to: <suse-security-subscribe(a)suse.com> To remove your address from the list, send a message to: <suse-security-unsubscribe(a)suse.com> Send mail to the following for info and FAQ for this list: <suse-security-info(a)suse.com> <suse-security-faq(a)suse.com> _____________________________________________________________________________ This information is provided freely to everyone interested and may be redistributed provided that it is not altered in any way. 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makewhatis bug
by thomas＠suse.de 10 Jul '00

10 Jul '00

Hi, a few days ago a /tmp race condition bug in the makewhatis program was posted on bugtraq. We are NOT vulnerable by this bug, because we use different code, which doesn't touch /tmp in a unsecure way. Bye, Thomas -- Thomas Biege, SuSE GmbH, Schanzaeckerstr. 10, 90443 Nuernberg E@mail: thomas(a)suse.de Function: Security Support & Auditing "lynx -source http://www.suse.de/~thomas/thomas.pgp | pgp -fka" Key fingerprint = 09 48 F2 FD 81 F7 E7 98 6D C7 36 F1 96 6A 12 47

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Problems after Kernel Update
by thomas＠suse.de 28 Jun '00

28 Jun '00

Hello, alot of customers report problems after updateing the kernel. Please, execute 'mk_initrd' and 'lilo' after upgrading the kernel. BTW, some people ask me about the security bug I mentoined in the 'Solution' section. This bug was a FIN flooding vulnerability, which only exists in the plain 2.2.16 kernel, not in 2.2.16 + Alan Cox' erratas kernel and not in the 2.2.17pre* kernels. Bye, Thomas -- Thomas Biege, SuSE GmbH, Schanzaeckerstr. 10, 90443 Nuernberg E@mail: thomas(a)suse.de Function: Security Support & Auditing "lynx -source http://www.suse.de/~thomas/thomas.pgp | pgp -fka" Key fingerprint = 09 48 F2 FD 81 F7 E7 98 6D C7 36 F1 96 6A 12 47

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SuSE Security Announcement: kernel-2.2.x
by thomas＠suse.de 27 Jun '00

27 Jun '00

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: kernel < 2.2.16 Date: Tue Jun 27 13:31:38 MEST 2000 Affected SuSE versions: 6.1-6.4 Vulnerability Type: local compromise of setuid applications SuSE default package: yes ______________________________________________________________________________ A security hole was discovered in the package mentioned above. Please update it as soon as possible or disable the service if you are using this software on your SuSE Linux installation(s). Other Linux distributions or operating systems might be affected as well, please contact your vendor for information about this issue. Please note that we provide this information on an "as-is" basis only. There is no warranty whatsoever and no liability for any direct, indirect or incidental damage arising from this information or the installation of the update package. _____________________________________________________________________________ 1. Problem Description The implementation of the capability feature of the kernel 2.2.x < 2.2.16 is faulty. 2. Impact This bug allows an local adversary to exploit certain setuid applications to increase his/her privileges. 3. Solution We are sorry about the late release of the new kernel, but the plain 2.2.16 kernel causes trouble with our patches and it also has a new security hole. After we solved all these problems, we hope, we could provide you with a more stable and more secure kernel. Please, update the package from our FTP server. (These RPMs could also be used by SuSE Releases < 6.4!) The Alpha kernel will be released within the next days. The PPC kernel could be build from lx_suse.rpm _____________________________________________________________________________ Please verify these md5 checksums of the updates before installing: i386 Kernel Images: c089568d3d6a9f0826146f9204a37888 ftp.suse.com/pub/suse/i386/update/6.4/kernel-2.2.16/k_deflt.rpm f454d629ccdf49e98fe759448ac1d34b ftp.suse.com/pub/suse/i386/update/6.4/kernel-2.2.16/k_eide.rpm 0c7111d249482920bb4a14a59ea1dbc2 ftp.suse.com/pub/suse/i386/update/6.4/kernel-2.2.16/k_i386.rpm Laptop Kernel Images: 3faa2d00ab77ce0c336fc8fa9d4dee11 ftp.suse.com/pub/suse/i386/update/6.4/kernel-2.2.16/k_laptop.rpm SMP Kernel Images: 45b9cd13f61e1cf0b82b8b2d847650c9 ftp.suse.com/pub/suse/i386/update/6.4/kernel-2.2.16/k_smp.rpm SuSE Kernel Source Code: 41bde34659d93214af2cf5da6e7e2896 ftp.suse.com/pub/suse/i386/update/6.4/kernel-2.2.16/lx_suse.rpm PPC Patches: b9c8008eec0922a06c95be7c76f4da8e ftp.suse.com/pub/suse/i386/update/6.4/kernel-2.2.16/patch_collection.tar.gz ______________________________________________________________________________ Try the following web pages for a list of mirrors: http://www.suse.de/ftp.html http://www.suse.com/ftp_new.html Our webpage for patches: http://www.suse.de/patches/index.html Our webpage for security announcements: http://www.suse.de/security If you want to report vulnerabilities, please contact security(a)suse.de ______________________________________________________________________________ SuSE has got two free security mailing list services to which any interested party may subscribe: use-security(a)suse.com - moderated and for general/linux/SuSE security discussions. All SuSE security announcements are sent to this list. use-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe to the list, send a message to: <suse-security-subscribe(a)suse.com> To remove your address from the list, send a message to: <suse-security-unsubscribe(a)suse.com> Send mail to the following for info and FAQ for this list: <suse-security-info(a)suse.com> <suse-security-faq(a)suse.com> _____________________________________________________________________________ This information is provided freely to everyone interested and may be redistributed provided that it is not altered in any way. 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