March 2003 - openSUSE Security - openSUSE Mailing Lists

SuSE Security Announcement: lprold (SuSE-SA:2003:0014)
by Thomas Biege 13 Mar '03

13 Mar '03

Republished due to a mistake. Thanks to an attentive user. -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: lprold Announcement-ID: SuSE-SA:2003:0014 Date: Thursday, Mar 13th 2003 16:58 MET Affected products: 7.1, 7.2, 7.3 SuSE eMail Server 3.1 SuSE eMail Server III SuSE Firewall Adminhost VPN SuSE Linux Admin-CD for Firewall SuSE Firewall on CD 2 - VPN SuSE Firewall on CD 2 SuSE Linux Enterprise Server for S/390 SuSE Linux Connectivity Server SuSE Linux Enterprise Server 7 SuSE Linux Office Server Vulnerability Type: local privilege escalation Severity (1-10): 3 SuSE default package: yes Cross References: Content of this advisory: 1) security vulnerability resolved: buffer overflow in lprm problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - ethereal - qpopper - XFree4 - sendmail - apcupsd - snort - file - zlib - vnc 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information The lprm command of the printing package lprold shipped till SuSE 7.3 contains a buffer overflow. This buffer overflow can be exploited by a local user, if the printer system is set up correctly, to gain root privileges. lprold is installed as default package and has the setuid bit set. As a temporary workaround you can disable the setuid bit of lprm by executing the following tasks as root: - add "/usr/bin/lprm root.root 755" to /etc/permissions.local - run 'chkstat -set /etc/permissions.local' Another way would be to just allow trusted users to run lprm by executing the following tasks as root: - add "/usr/bin/lprm root.trusted 4750" to /etc/permissions.local - run 'chkstat -set /etc/permissions.local' Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web. Intel i386 Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/lprold-3.0.48-408.i386.rpm 52a301d88fce69dcf2de53c86d70f51e source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/lprold-3.0.48-408.src.rpm 9907cc1bd077493d0bb1a0e646a20022 SuSE-7.2: ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/lprold-3.0.48-407.i386.rpm 364faa0d5266e36d7db90ac223137f2d source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/lprold-3.0.48-407.src.rpm eff9c0ff34e0ad0d313477b998964a26 SuSE-7.1: ftp://ftp.suse.com/pub/suse/i386/update/7.1/n1/lprold-3.0.48-407.i386.rpm 5454e913e660a6d409a200a3ddd19f8b source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/lprold-3.0.48-407.src.rpm ad22928b988b8ed055ab5698e15479e4 Sparc Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/lprold-3.0.48-273.sparc.rpm 88a5f8cf7db0c123776b4fa9f47e9205 source rpm(s): ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/lprold-3.0.48-273.src.rpm 83860e8bd337b3617f8c59605c8ff847 AXP Alpha Platform: SuSE-7.1: ftp://ftp.suse.com/pub/suse/axp/update/7.1/n1/lprold-3.0.48-270.alpha.rpm 651c6141e07560763f07b74c1506d668 source rpm(s): ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/lprold-3.0.48-270.src.rpm 96b67fb75ae0c4702f6e881c665f81dd PPC Power PC Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/lprold-3.0.48-297.ppc.rpm 8caba2cc70f7edfa96c23ac3bab3e8bf source rpm(s): ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/lprold-3.0.48-297.src.rpm b1741e591445aef7b8aaf83a8a4a34ef SuSE-7.1: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n1/lprold-3.0.48-297.ppc.rpm 1b86cd16e6e5b8e63252b9c9a6acd5b9 source rpm(s): ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/lprold-3.0.48-297.src.rpm e44adcc90b604bc4dc81b43e57f6e161 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - ethereal A format string bug in ethereal's SOCKS handling code and a buffer overflow in the NTLMSSP was found in ethereal. Both bugs may lead to remote system compromise. New packages are currently being build and will be available soon. - qpopper In version 4.0.x of qpopper a buffer overflow *after* user authen- tication can be exploited to gain a shell on a POP-server machine. New packages are currently being build and will be available soon. - XFree4 A buffer overflow in the Xlib code can be triggered while handling the environment variable XLOCALEDIR. The X version affected is 4.2.0 (SuSE Linux 8.0 and 8.1). We still investigate this issue. - sendmail A correction is necessary to the last SuSE Security Announcement (SuSE-SA:2003:013) about sendmail: The Vulnerability Type must read remote buffer overflow. - apcupsd The control and management daemon for APC UPS systems is vulnerable to remote code execution due to buffer overflow and format string bugs. A dedicated advisory for this issue will be released as soon as all packages are build. - snort snort, a sensor-based Network Intrusion Detection System, was vulnerable to a buffer overflow in it's RPC preprocessor. As a workaround the following line in snort.conf should be commented out and snort should be restarted to disable the RPC-preprocessor: preprocessor rpc_decode: 111 32771 Future version of SuSE Linux will be shipped with a fixed snort package. - file A locally exploitable buffer overflow was found in the file command. New packages are currently being build and will be available soon. - zlib zlib's function gzprintf() is prone to a buffer overflow if its arguments expand to more then Z_PRINTF_BUFSIZE bytes. A fixed version of zlib will be shipped with future SuSE Linux versions. - vnc VNC (Virtual Network Computing) uses a weak cookie generation process which can be exploited by an attacker to bypass authentication. New packages are currently being tested and will be available on our FTP servers soon. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de) the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an un-installed rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the top-level directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - 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 announcements 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> or <security(a)suse.de>. The <security(a)suse.de> public key is listed below. ===================================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the clear-text signature shows proof of the authenticity of the text. SuSE Linux AG makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security(a)suse.de> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build(a)suse.de> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQGiBDnu9IERBACT8Y35+2vv4MGVKiLEMOl9GdST6MCkYS3yEKeueNWc+z/0Kvff 4JctBsgs47tjmiI9sl0eHjm3gTR8rItXMN6sJEUHWzDP+Y0PFPboMvKx0FXl/A0d M+HFrruCgBlWt6FA+okRySQiliuI5phwqkXefl9AhkwR8xocQSVCFxcwvwCglVcO QliHu8jwRQHxlRE0tkwQQI0D+wfQwKdvhDplxHJ5nf7U8c/yE/vdvpN6lF0tmFrK XBUX+K7u4ifrZlQvj/81M4INjtXreqDiJtr99Rs6xa0ScZqITuZC4CWxJa9GynBE D3+D2t1V/f8l0smsuYoFOF7Ib49IkTdbtwAThlZp8bEhELBeGaPdNCcmfZ66rKUd G5sRA/9ovnc1krSQF2+sqB9/o7w5/q2qiyzwOSTnkjtBUVKn4zLUOf6aeBAoV6NM CC3Kj9aZHfA+ND0ehPaVGJgjaVNFhPi4x0e7BULdvgOoAqajLfvkURHAeSsxXIoE myW/xC1sBbDkDUIBSx5oej73XCZgnj/inphRqGpsb+1nKFvF+rQoU3VTRSBQYWNr YWdlIFNpZ25pbmcgS2V5IDxidWlsZEBzdXNlLmRlPohcBBMRAgAcBQI57vSBBQkD wmcABAsKAwQDFQMCAxYCAQIXgAAKCRCoTtronIAKyl8sAJ98BgD40zw0GHJHIf6d NfnwI2PAsgCgjH1+PnYEl7TFjtZsqhezX7vZvYCIRgQQEQIABgUCOnBeUgAKCRCe QOMQAAqrpNzOAKCL512FZvv4VZx94TpbA9lxyoAejACeOO1HIbActAevk5MUBhNe LZa/qM2JARUDBRA6cGBvd7LmAD0l09kBATWnB/9An5vfiUUE1VQnt+T/EYklES3t XXaJJp9pHMa4fzFa8jPVtv5UBHGee3XoUNDVwM2OgSEISZxbzdXGnqIlcT08TzBU D9i579uifklLsnr35SJDZ6ram51/CWOnnaVhUzneOA9gTPSr+/fT3WeVnwJiQCQ3 0kNLWVXWATMnsnT486eAOlT6UNBPYQLpUprF5Yryk23pQUPAgJENDEqeU6iIO9Ot 1ZPtB0lniw+/xCi13D360o1tZDYOp0hHHJN3D3EN8C1yPqZd5CvvznYvB6bWBIpW cRgdn2DUVMmpU661jwqGlRz1F84JG/xe4jGuzgpJt9IXSzyohEJB6XG5+D0BiF0E ExECAB0FAjxqqTQFCQoAgrMFCwcKAwQDFQMCAxYCAQIXgAAKCRCoTtronIAKyp1f AJ9dR7saz2KPNwD3U+fy/0BDKXrYGACfbJ8fQcJqCBQxeHvt9yMPDVq0B0W5Ag0E Oe70khAIAISR0E3ozF/la+oNaRwxHLrCet30NgnxRROYhPaJB/Tu1FQokn2/Qld/ HZnh3TwhBIw1FqrhWBJ7491iAjLR9uPbdWJrn+A7t8kSkPaF3Z/6kyc5a8fas44h t5h+6HMBzoFCMAq2aBHQRFRNp9Mz1ZvoXXcI1lk1l8OqcUM/ovXbDfPcXsUVeTPT tGzcAi2jVl9hl3iwJKkyv/RLmcusdsi8YunbvWGFAF5GaagYQo7YlF6UaBQnYJTM 523AMgpPQtsKm9o/w9WdgXkgWhgkhZEeqUS3m5xNey1nLu9iMvq9M/iXnGz4sg6Q 2Y+GqZ+yAvNWjRRou3zSE7Bzg28MI4sAAwYH/2D71Xc5HPDgu87WnBFgmp8MpSr8 QnSs0wwPg3xEullGEocolSb2c0ctuSyeVnCttJMzkukL9TqyF4s/6XRstWirSWaw JxRLKH6Zjo/FaKsshYKf8gBkAaddvpl3pO0gmUYbqmpQ3xDEYlhCeieXS5MkockQ 1sj2xYdB1xO0ExzfiCiscUKjUFy+mdzUsUutafuZ+gbHog1CN/ccZCkxcBa5IFCH ORrNjq9pYWlrxsEn6ApsG7JJbM2besW1PkdEoxak74z1senh36m5jQvVjA3U4xq1 wwylxadmmJaJHzeiLfb7G1ZRjZTsB7fyYxqDzMVul6o9BSwO/1XsIAnV1uuITAQY EQIADAUCOe70kgUJA8JnAAAKCRCoTtronIAKyksiAJsFB3/77SkH3JlYOGrEe1Ol 0JdGwACeKTttgeVPFB+iGJdiwQlxasOfuXyITAQYEQIADAUCPGqpWQUJCgCCxwAK CRCoTtronIAKyofBAKCSZM2UFyta/fe9WgITK9I5hbxxtQCfX+0ar2CZmSknn3co SPihn1+OBNyZAQ0DNuEtBAAAAQgAoCRcd7SVZEFcumffyEwfLTcXQjhKzOahzxpo omuF+HIyU4AGq+SU8sTZ/1SsjhdzzrSAfv1lETACA+3SmLr5KV40Us1w0UC64cwt A46xowVq1vMlH2Lib+V/qr3b1hE67nMHjysECVx9Ob4gFuKNoR2eqnAaJvjnAT8J /LoUC20EdCHUqn6v+M9t/WZgC+WNR8cq69uDy3YQhDP/nIan6fm2uf2kSV9A7ZxE GrwsWl/WX5Q/sQqMWaU6r4az98X3z90/cN+eJJ3vwtA+rm+nxEvyev+jaLuOQBDf ebh/XA4FZ35xmi+spdiVeJH4F/ubaGlmj7+wDOF3suYAPSXT2QAFEbQlU3VTRSBT ZWN1cml0eSBUZWFtIDxzZWN1cml0eUBzdXNlLmRlPokBFQMFEDbhLUfkWLKHsco8 RQEBVw4H/1vIdiOLX/7hdzYaG9crQVIk3QwaB5eBbjvLEMvuCZHiY2COUg5QdmPQ 8SlWNZ6k4nu1BLcv2g/pymPUWP9fG4tuSnlUJDrWGm3nhyhAC9iudP2u1YQY37Gb B6NPVaZiYMnEb4QYFcqv5c/r2ghSXUTYk7etd6SW6WCOpEqizhx1cqDKNZnsI/1X 11pFcO2N7rc6byDBJ1T+cK+F1Ehan9XBt/shryJmv04nli5CXQMEbiqYYMOu8iaA 8AWRgXPCWqhyGhcVD3LRhUJXjUOdH4ZiHCXaoF3zVPxpeGKEQY8iBrDeDyB3wHmj qY9WCX6cmogGQRgYG6yJqDalLqrDOdmJARUDBRA24S0Ed7LmAD0l09kBAW04B/4p WH3f1vQn3i6/+SmDjGzUu2GWGq6Fsdwo2hVM2ym6CILeow/K9JfhdwGvY8LRxWRL hn09j2IJ9P7H1Yz3qDf10AX6V7YILHtchKT1dcngCkTLmDgC4rs1iAAl3f089sRG BafGPGKv2DQjHfR1LfRtbf0P7c09Tkej1MP8HtQMW9hPkBYeXcwbCjdrVGFOzqx+ AvvJDdT6a+oyRMTFlvmZ83UV5pgoyimgjhWnM1V4bFBYjPrtWMkdXJSUXbR6Q7Pi RZWCzGRzwbaxqpl3rK/YTCphOLwEMB27B4/fcqtBzgoMOiaZA0M5fFoo54KgRIh0 zinsSx2OrWgvSiLEXXYKiEYEEBECAAYFAjseYcMACgkQnkDjEAAKq6ROVACgjhDM /3KM+iFjs5QXsnd4oFPOnbkAnjYGa1J3em+bmV2aiCdYXdOuGn4ZiQCVAwUQN7c7 whaQN/7O/JIVAQEB+QP/cYblSAmPXxSFiaHWB+MiUNw8B6ozBLK0QcMQ2YcL6+Vl D+nSZP20+Ja2nfiKjnibCv5ss83yXoHkYk2Rsa8foz6Y7tHwuPiccvqnIC/c9Cvz dbIsdxpfsi0qWPfvX/jLMpXqqnPjdIZErgxpwujas1n9016PuXA8K3MJwVjCqSKI RgQQEQIABgUCOhpCpAAKCRDHUqoysN/3gCt7AJ9adNQMbmA1iSYcbhtgvx9ByLPI DgCfZ5Wj+f7cnYpFZI6GkAyyczG09sE= =LRKC - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBPnCrEney5gA9JdPZAQEmbQf/fSpxcigSHxHm3mVwzndZRteB17PwwU7O 2Gq7Yw8R1JRIayB2L9oH8oPS77hGewov+J0H+/rEzfkIy1XqhSKtSkoIs6ltUO4P POwwjJc1/AJacl0jPyK+Cp4J36eGknPPfG5eVz+em+K/9Qwacv20L2pQVuSMqqOf WCri9tFXQQrTnGpskQwemCY3hoWTp87LE0tgCVXoBv06VgcUqLaInDbPG+avMSnl idrvBgESg4WH6Dh12GXzQ4MDGyJcaUyXOXp6WfWrQocYS798QehNjpnGD05asWkO p71JLY65lIT35lR831NupgWQaDsQiWt4UhEFt7VFMSxAtFURPHquHg== =vL4I -----END PGP SIGNATURE----- Bye, Thomas -- Thomas Biege <thomas(a)suse.de> SuSE Linux AG,Deutschherrnstr. 15-19,90429 Nuernberg Function: Security Support & Auditing "lynx -source http://www.suse.de/~thomas/contact/thomas.asc | gpg --import" Key fingerprint = 7254 B15D B3C4 943F 485E 0BBD 8ECC D7CB C200 A213

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SuSE Security Announcement: lprold (SuSE-SA:2003:0014)
by Thomas Biege 13 Mar '03

13 Mar '03

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: lprold Announcement-ID: SuSE-SA:2003:0014 Date: Thursday, Mar 13th 2003 16:00 MET Affected products: 7.1, 7.2, 7.3 SuSE eMail Server 3.1 SuSE eMail Server III SuSE Firewall Adminhost VPN SuSE Linux Admin-CD for Firewall SuSE Firewall on CD 2 - VPN SuSE Firewall on CD 2 SuSE Linux Enterprise Server for S/390 SuSE Linux Connectivity Server SuSE Linux Enterprise Server 7 SuSE Linux Office Server Vulnerability Type: local privilege escalation Severity (1-10): 3 SuSE default package: yes Cross References: Content of this advisory: 1) security vulnerability resolved: buffer overflow in lprm problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - ethereal - qpopper - XFree4 - sendmail - apcupsd - snort - file - zlib - vnc 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information The lprm command of the printing package lprold shipped till SuSE 7.3 contains a buffer overflow. This buffer overflow can be exploited by a local user, if the printer system is set up correctly, to gain root privileges. lprold is installed as default package and has the setuid bit set. As a temporary workaround you can disable the setuid bit of lprm by executing the following tasks as root: - add "/usr/bin/lprm root.root 755" to /etc/permissions.local - run 'chkstat -set /etc/permissions.local' Another way would be to just allow trusted users to run lprm by executing the following tasks as root: - add "/usr/bin/lprm root.trusted 4755" to /etc/permissions.local - run 'chkstat -set /etc/permissions.local' Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web. Intel i386 Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/lprold-3.0.48-408.i386.rpm 52a301d88fce69dcf2de53c86d70f51e source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/lprold-3.0.48-408.src.rpm 9907cc1bd077493d0bb1a0e646a20022 SuSE-7.2: ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/lprold-3.0.48-407.i386.rpm 364faa0d5266e36d7db90ac223137f2d source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/lprold-3.0.48-407.src.rpm eff9c0ff34e0ad0d313477b998964a26 SuSE-7.1: ftp://ftp.suse.com/pub/suse/i386/update/7.1/n1/lprold-3.0.48-407.i386.rpm 5454e913e660a6d409a200a3ddd19f8b source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/lprold-3.0.48-407.src.rpm ad22928b988b8ed055ab5698e15479e4 Sparc Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/lprold-3.0.48-273.sparc.rpm 88a5f8cf7db0c123776b4fa9f47e9205 source rpm(s): ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/lprold-3.0.48-273.src.rpm 83860e8bd337b3617f8c59605c8ff847 AXP Alpha Platform: SuSE-7.1: ftp://ftp.suse.com/pub/suse/axp/update/7.1/n1/lprold-3.0.48-270.alpha.rpm 651c6141e07560763f07b74c1506d668 source rpm(s): ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/lprold-3.0.48-270.src.rpm 96b67fb75ae0c4702f6e881c665f81dd PPC Power PC Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/lprold-3.0.48-297.ppc.rpm 8caba2cc70f7edfa96c23ac3bab3e8bf source rpm(s): ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/lprold-3.0.48-297.src.rpm b1741e591445aef7b8aaf83a8a4a34ef SuSE-7.1: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n1/lprold-3.0.48-297.ppc.rpm 1b86cd16e6e5b8e63252b9c9a6acd5b9 source rpm(s): ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/lprold-3.0.48-297.src.rpm e44adcc90b604bc4dc81b43e57f6e161 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - ethereal A format string bug in ethereal's SOCKS handling code and a buffer overflow in the NTLMSSP was found in ethereal. Both bugs may lead to remote system compromise. New packages are currently being build and will be available soon. - qpopper In version 4.0.x of qpopper a buffer overflow *after* user authen- tication can be exploited to gain a shell on a POP-server machine. New packages are currently being build and will be available soon. - XFree4 A buffer overflow in the Xlib code can be triggered while handling the environment variable XLOCALEDIR. The X version affected is 4.2.0 (SuSE Linux 8.0 and 8.1). We still investigate this issue. - sendmail A correction is necessary to the last SuSE Security Announcement (SuSE-SA:2003:013) about sendmail: The Vulnerability Type must read remote buffer overflow. - apcupsd The control and management daemon for APC UPS systems is vulnerable to remote code execution due to buffer overflow and format string bugs. A dedicated advisory for this issue will be released as soon as all packages are build. - snort snort, a sensor-based Network Intrusion Detection System, was vulnerable to a buffer overflow in it's RPC preprocessor. As a workaround the following line in snort.conf should be commented out and snort should be restarted to disable the RPC-preprocessor: preprocessor rpc_decode: 111 32771 Future version of SuSE Linux will be shipped with a fixed snort package. - file A locally exploitable buffer overflow was found in the file command. New packages are currently being build and will be available soon. - zlib zlib's function gzprintf() is prone to a buffer overflow if its arguments expand to more then Z_PRINTF_BUFSIZE bytes. A fixed version of zlib will be shipped with future SuSE Linux versions. - vnc VNC (Virtual Network Computing) uses a weak cookie generation process which can be exploited by an attacker to bypass authentication. New packages are currently being tested and will be available on our FTP servers soon. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de) the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an un-installed rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the top-level directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - 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 announcements 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> or <security(a)suse.de>. The <security(a)suse.de> public key is listed below. ===================================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the clear-text signature shows proof of the authenticity of the text. SuSE Linux AG makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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AW: AW: [suse-security] VPN with IPsec (FreeSwan) and Windows 200 0 Cl ient
by Junge, Stefan 13 Mar '03

13 Mar '03

Hi, thank you for your advice Andreas. Ok, with these I can see, that there is no tunnel. What is a simple example for a tunnel without x509 certificate ? Is a connection between w2k an linux possible with public/private keys ? Thanks for help Stefan

2 1

AW: [suse-security] VPN with IPsec (FreeSwan) and Windows 2000 Cl ient
by Junge, Stefan 13 Mar '03

13 Mar '03

Hi, I solved the problem. In my conn Roadwarrior I have changed the value for network=both to network=lan. Now ipsec on my w2k client starts without errors. How can I test the vpn tunnel ? I have made a tcpdump -n -i ipsec0 on my gateway and a ping from my client to the gateway. The ping works fine, but there were no packets detected with tcpdump. Best regards Stefan -----Ursprüngliche Nachricht----- Von: Andreas Baetz [mailto:lac01@web.de] Gesendet: Donnerstag, 13. März 2003 13:16 An: suse-security(a)suse.com Betreff: Re: [suse-security] VPN with IPsec (FreeSwan) and Windows 2000 Client On Thursday 13 March 2003 12:55, Junge, Stefan wrote: > Hi, > > I tried to setup a VPN tunnel. > My VPN Gateway is based on SuSE 8.0 and FreeSwan 1.98b shipped with the > distribution. > > I followed my installation instruction found via google for the gateway. > Authorisation should be realized with x509 certificates. > My VPN Gateway starts with rcipsec start and a rcipsec status told me, that > ipsec is active. > > I´ve created a p12 certificate for my windows 2000 client and installed the > additional software from Marcus Müller. > > Now, when I´m starting ipsec on my w2k client the following message occurs > : > > IPSec Version 2.1.4 .... > Getting running Config ... > Microsoft´s Windows 2000 identified > Host name is : P0741099 > No RAS connections found. > LAN IP address : 192.168.150.2 > Setting up IPsec ... > > Deactivatin old policy... > Removing old policy... > > Connection VPNTEST: > Could not identify my own Interface below you show the conn "Raodwarrior", what is the configuration of conn VPNTEST ? > > My ipsec.conf placed in C:\programme\ipsec contains > conn Roadwarrior > left=%any > right=192.168.150.1 > rightsubnet=192.168.150.1/255.255.255.0 > rightca="...." > network=both > auto=start > pfs=yes Andreas Baetz -- Check the headers for your unsubscription address For additional commands, e-mail: suse-security-help(a)suse.com Security-related bug reports go to security(a)suse.de, not here

2 1

VPN with IPsec (FreeSwan) and Windows 2000 Client
by Junge, Stefan 13 Mar '03

13 Mar '03

Hi, I tried to setup a VPN tunnel. My VPN Gateway is based on SuSE 8.0 and FreeSwan 1.98b shipped with the distribution. I followed my installation instruction found via google for the gateway. Authorisation should be realized with x509 certificates. My VPN Gateway starts with rcipsec start and a rcipsec status told me, that ipsec is active. I´ve created a p12 certificate for my windows 2000 client and installed the additional software from Marcus Müller. Now, when I´m starting ipsec on my w2k client the following message occurs : IPSec Version 2.1.4 .... Getting running Config ... Microsoft´s Windows 2000 identified Host name is : P0741099 No RAS connections found. LAN IP address : 192.168.150.2 Setting up IPsec ... Deactivatin old policy... Removing old policy... Connection VPNTEST: Could not identify my own Interface My ipsec.conf placed in C:\programme\ipsec contains conn Roadwarrior left=%any right=192.168.150.1 rightsubnet=192.168.150.1/255.255.255.0 rightca="...." network=both auto=start pfs=yes A ipconfig shows my ip-address So, what´s wrong ? MfG Stefan

2 1

Re: [suse-security] VPN with IPsec (FreeSwan) and Windows 2000 Client
by Michael Ryan 13 Mar '03

13 Mar '03

Try setting right={real ip addr of VPN gateway} "Junge, Stefan" <Stefan.Junge(a)ssi-schaefer.de> wrote: > > Hi, > > I tried to setup a VPN tunnel. > My VPN Gateway is based on SuSE 8.0 and FreeSwan 1.98b shipped with the > distribution. > > I followed my installation instruction found via google for the = > gateway. > Authorisation should be realized with x509 certificates. > My VPN Gateway starts with rcipsec start and a rcipsec status told me, = > that > ipsec is active. > > I=B4ve created a p12 certificate for my windows 2000 client and = > installed the > additional software from Marcus M=FCller. > > Now, when I=B4m starting ipsec on my w2k client the following message = > occurs : > > IPSec Version 2.1.4 .... > Getting running Config ... > Microsoft=B4s Windows 2000 identified > Host name is : P0741099 > No RAS connections found. > LAN IP address : 192.168.150.2 > Setting up IPsec ... > > Deactivatin old policy... > Removing old policy... > > Connection VPNTEST: > Could not identify my own Interface > > My ipsec.conf placed in C:\programme\ipsec contains > conn Roadwarrior > left=3D%any > right=3D192.168.150.1 > rightsubnet=3D192.168.150.1/255.255.255.0 > rightca=3D"...." > network=3Dboth > auto=3Dstart > pfs=3Dyes > > > A ipconfig shows my ip-address > > So, what=B4s wrong ? > > MfG > Stefan=20 > > -- > Check the headers for your unsubscription address > For additional commands, e-mail: suse-security-help(a)suse.com > Security-related bug reports go to security(a)suse.de, not here > >

1 0

Re: [suse-security] Looking for logs
by bliss＠attbi.com 12 Mar '03

12 Mar '03

I had a similar problem when my network went down (OK, when I pulled the cables out of the hub). I rebooted and have not had the problem since. Struck me as a problem with losing the network connection and a failure in proper recovery. Jim > It has plenty of disk free. > The server was freezed and I couldn't login neither local or remote. > There were no activity on the ethernet card/switch. > > Since I found nothing relevant in apache and bind logs, maybe it was an > hardware failure (maybe memory?) is it possible? > > Thnx > Pedro > > > ----- Original Message ----- > From: "Rafael Grimán" <rafa(a)artenet-cb.es> > To: <suse-security(a)suse.com> > Sent: Wednesday, March 12, 2003 11:34 AM > Subject: Re: [suse-security] Looking for logs > > > > Pedro Marques wrote: > > > Hi all, > > > > > > Last night my SuSE 8.0 server went down (freezed). > > > > > > The only service available to the internet is www (tcp/80) and dns > (udp/53), > > > so today I've been checking the logs but found nothing, no errors, no > > > strange lines, it was like someone pulled the electricity cable. > > > > Did it freeze or did it shutdown? > > > > > Is there any place other than /var/log where I could check what really > > > happened? > > > > First thing that comes to my mind is: could you have run out of disk > space? > > > > df -h > > > > HTH > > > > -- > > rafa(a)artenet-cb.es http://www.suse.de/es > > rafael.griman(a)hispalinux.es http://www.suse.com > > registered Linux user 286102 http://counter.li.org/ > > > > Only those who attempt the absurd can achieve the > > impossible. > > > > > > -- > > Check the headers for your unsubscription address > > For additional commands, e-mail: suse-security-help(a)suse.com > > Security-related bug reports go to security(a)suse.de, not here > > > > > -- > Check the headers for your unsubscription address > For additional commands, e-mail: suse-security-help(a)suse.com > Security-related bug reports go to security(a)suse.de, not here >

1 0

firewall and multiple interfaces
by Paul Alfille 12 Mar '03

12 Mar '03

Simple question, I'd like to have several internal ethernet devices on my box, and allow routing between them, as well as have them all talk to the outside interface. Detail: Currently SuSEFirewall2 works well with one external port (eth0) and one internal (eth1). I'd like to add eth2 as an internal interfaces as well. (To a wireless hub). I want forwarding between eth1 and eth2. The YaST setup allows putting in "internal interfaces", but doesn't say how to separate them, nor how they are handled. Any suggestions? Paul Alfille

4 8

Firewall and diald
by Paul Alfille 11 Mar '03

11 Mar '03

Can the firewall code support two external interfaces? I'd like to have a telephone modem handle one address range, and the rest of the internet be through a cable modem. Current setup: Server NEW and OLD. Server NEW has Firewall2 setup to the cable modem, and is the default router for my network. I have a routing table entry for the selected address range to server OLD. Server OLD has a modem, runs diald (and SuSE5.3) and masquerades the selected range over the modem. Unfortunately, OLD really is old, and unreliable. I'd like to consolidate. Question: Can the firewall setup handle the two devices? -- Paul Alfille

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gigabit ethernet DROP-DEFAULT
by Alexy Khrabrov 11 Mar '03

11 Mar '03

Greetings -- I have an interesting problem with a masqueraded losedows box. Originally it came with an Intel 100 Mbps ethernet, but later I added Intel PRO/1000 cards both to it and my SuSE server. I've turned on jumbo packages on Windows side, and everything works fine between them via Samba. E.g., a 4.7 GB file flies in a moment. :) But after switching to the gigabit, the *dows box stopped getting through to the internet! Previously it was on my wired subnetwork 192.168.0.0/24, I also have a wireless 192.168.3.0/24, eth0 goes to my hardware firewall as 192.168.2.0/24, and I assigned the gigabit as 192.168.1.0/24. Here's what I'm getting from SuSEfirewall2 3.1.22: Mar 9 21:42:04 angle kernel: SuSE-FW-DROP-DEFAULT IN=eth3 OUT=eth0 SRC=192.168.1.2 DST=216.239.53.101 LEN=48 TOS=0x08 PREC=0x00 TTL=127 ID=47354 DF PROTO=TCP SPT=1056 DPT=80 WINDOW=64296 RES=0x00 SYN URGP=0 OPT (020405B401010402) Mar 9 21:42:07 angle kernel: SuSE-FW-DROP-DEFAULT IN=eth3 OUT=eth0 SRC=192.168.1.2 DST=216.239.53.101 LEN=48 TOS=0x08 PREC=0x00 TTL=127 ID=47356 DF PROTO=TCP SPT=1056 DPT=80 WINDOW=64296 RES=0x00 SYN URGP=0 OPT (020405B401010402) I attach the result of grep -v \^# /etc/rc.config.d/firewall2.rc.config below. What is befuddling is that I'm treating eth3 exactly like other subnetworks in it, but the packets from the gigabit link are droppped! No matter which rules I comment out in the firewall script, they stop at some. Is there something wrong with the packets? -- Cheers, Alexy Khrabrov :: www.setup.org :: Age Quod Agis

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