openSUSE Security August 2006

security@lists.opensuse.org

28 participants
11 discussions

RSBAC Functionality
by Thomas Jones 29 Aug '06

29 Aug '06

Hello, Has anyone here implemented RSBAC access control in a 9+ suse/opensuse release? I am looking at testing RSBAC within suse and was wanting to know other end-user(s) experiences. I am sure that kernel patches must be altered to apply cleanly to suse kernels. And the init system within suse is a little different than most distributions, so the application of security policies for system initialization(as well as login) will need some work for sure. No rpm's of dialog or user-manager are available according to google. So this leads me to believe that not very many suse/opensuse end-users implement and/or develop fine-grained access control models. Hopefully this is incorrect. Thanks. Thomas R. Jones

3 4

Apparmor profile locations & Found unexpected keyword: 'mr' errors
by rmyster 23 Aug '06

23 Aug '06

Could someone point out the difference between the profiles stored in /etc/apparmor.d/ vs /etc/apparmor/profiles/extras/? The reason I ask is that I sometimes get errors about profiles claiming unexpected keyword: 'mr'. For example, here is one from a netstat profile: "Loading AppArmor profiles AppArmor parser error in /etc/apparmor.d/bin.netstat at line 291: Found unexpected keyword: 'mr' Profile /etc/apparmor.d/bin.netstat failed to load" If the bin.netstat profile is moved to the /etc/apparmor/profiles/extras/ directory, and apparmor is restarted, there isn't any error. A 2nd example is illustrated with the usr.lib.postfix.pickup profile. If the profile in in /etc/apparmor.d, I get this error: "# rcpostfix restart Shutting down mail service (Postfix) done Starting mail service (Postfix) failed" with the following output from /var/log/audit/audit.log: "type=APPARMOR msg=audit(1156337692.653:44): REJECTING mr access to /lib/ld-2.4.so (pickup(21068) profile /usr/lib/postfix/pickup active /usr/lib/postfix/pickup)" moving usr.lib.postfix.pickup to /etc/apparmor/profiles/extras/ followed by a restart of apparmor and postfix generates no errors with a postfix restart. Does moving the profile to the extras folder alter its use within apparmor or render it useless? I notice that when I create a new profile it seems to get placed in /etc/apparmor.d/ but often apparmor won't restart because of the "Found unexpected keyword: 'mr'" issue or the application won't run properly due to the "REJECTING mr access" errors. Editing the profile manually sometimes works but if I later run the update profile wizard it just places the "m" back in and the application stops working due to denied access. I added the contents of the bin.netstat profile at the bottom message for illustration purposes, but it happens with others and always seems to involve the letter 'm'. If there is no fuctional difference between the two directories, why does one give the error and the other doesn't? On a related note, is there a way to include the contents /var/log/audit/audit.log in the /var/log/allmessages log? There is no line 291 in the bin.netstat file. but the bin.netstat profile contents start below: #include <tunables/global> /bin/netstat flags=(complain) { #include <abstractions/base> #include <abstractions/consoles> #include <abstractions/nameservice> capability dac_override, capability dac_read_search, /bin/netstat rix, /etc/ld.so.cache mr, /etc/networks r, /lib/ld-2.4.so rlix, /lib/lib*so* mr, /proc r, /proc/[0-9]*/cmdline r, /proc/[0-9]*/fd r, /proc/net r, /proc/net/* r, /usr/lib/gconv/gconv-modules* mr, /usr/lib/locale/** mr,

2 2

SuSEfirewall script hardcodes ip_conntrack_max
by Ashley.Gould＠ucop.edu 23 Aug '06

23 Aug '06

SL9.1 and SLES9 Extreme use of our webservers during online application season requires we set the /proc/sys/net/ipv4/ip_conntrack_max very high (= 65536). I tried to make this setting persistant between reboots by means of /etc/sysctl.conf and boot.sysctl init script. But each reboot left ip_conntrack_max = 16384. After much hair-pulling, I finally discoverd the script /sbin/SuSEfirewall2 contains the line: echo 16384 > /proc/sys/net/ipv4/ip_conntrack_max It think this is bad bad bad. Perhaps this should be a variable controlled by yast or some file in /etc/sysconfig. But this should not be hard-coded into the script. I don't see this in SL9.3 or SLES10. I have altered this line in /sbin/SuSEfirewall2 to get the ip_conntrack_max value I need, but what will happen after next update to SuSEfirewall2 rpm? I realize SL9.1 is out of maintenace, so this is essencially a SLES9 issue. If you think it best, I will contact SLES support instead and let this list rest. -- -ashley Did you try poking at it with a stick?

1 0

resetting You
by Bob Vickers 21 Aug '06

21 Aug '06

Hello, I have managed to tame the Zen/Rug business on most of the machines I administer, but one of them is refusing to cooperate. Every time I try to run 'you' or configure it yast just crashes. There are no error messages or core files, just a shell prompt at the top of the screen hidden in the Yast display. Does anyone know a simple wayy of resetting You to a safe state? Is it safe for example to delete /var/lib/zypp and /var/lib/zmd ? Many thanks, Bob ============================================================== Bob Vickers Dept of Computer Science, Royal Holloway, University of London

1 0

SPAM: AppArmor and vsftpd
by Miguel ALBUQUERQUE 18 Aug '06

18 Aug '06

I was just wondering how AppArmor and vsftpd will react if one enables the vsftpd option chroot_local_user=YES on /etc/vsftpd.conf Correct me if I am wrong, but as much as i understood, AA is for protecting data integrety as chroot jails for creating user confinement. In that case the combination of both will be a very good compromise in security vs performance or it's just a bit overkill ? Miguel Albuquerque Network Administrator DISCLAIMER - This message is intended for the use of the named person only. The information contained in this E-mail is confidential and any disclosure, copying, distribution or taking any action in reliance on the contents of this information is strictly prohibited. This message does not represent a formal commitment by Codalis SA. Codalis SA is neither liable for the proper and complete transmission of the information contained in this communication nor for any delay in its receipt.

6 10

SUSE Security Announcement: MozillaFirefox, MozillaThunderbird, Seamonkey (SUSE-SA:2006:048)
by Marcus Meissner 16 Aug '06

16 Aug '06

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: MozillaFirefox,MozillaThunderbird,Seamonkey Announcement ID: SUSE-SA:2006:048 Date: Wed, 16 Aug 2006 17:00:00 +0000 Affected Products: Novell Linux Desktop 9 SLE SDK 10 SUSE LINUX 10.1 SUSE LINUX 10.0 SUSE LINUX 9.3 SUSE LINUX 9.2 SUSE SLES 10 Vulnerability Type: remote code execution Severity (1-10): 8 SUSE Default Package: yes Cross-References: CVE-2006-3113, CVE-2006-3677, CVE-2006-3801 CVE-2006-3802, CVE-2006-3803, CVE-2006-3804 CVE-2006-3805, CVE-2006-3806, CVE-2006-3807 CVE-2006-3808, CVE-2006-3809, CVE-2006-3810 CVE-2006-3811, CVE-2006-3812, MFSA 2006-01 MFSA 2006-10, MFSA 2006-44, MFSA 2006-45 MFSA 2006-46, MFSA 2006-47, MFSA 2006-48 MFSA 2006-49, MFSA 2006-50, MFSA 2006-51 MFSA 2006-52, MFSA 2006-53, MFSA 2006-54 MFSA 2006-55, MFSA 2006-56 Content of This Advisory: 1) Security Vulnerability Resolved: various mozilla browser security problems Problem Description 2) Solution or Work-Around 3) Special Instructions and Notes 4) Package Location and Checksums 5) Pending Vulnerabilities, Solutions, and Work-Arounds: See SUSE Security Summary Report. 6) Authenticity Verification and Additional Information ______________________________________________________________________________ 1) Problem Description and Brief Discussion To fix various security problems we released update packages that bring Mozilla Firefox to version 1.5.0.6, MozillaThunderdbird to version 1.5.0.5 and the Seamonkey Suite to version 1.0.3. Note that on Novell Linux Desktop 9 and SUSE Linux 9.2 up to 10.0 this is a major version upgrade of Mozilla Firefox, please check if your Firefox plugins are still working. Still missing are updates for the (discontinued) Mozilla Suite. More details on the security problems can be found on: http://www.mozilla.org/projects/security/known-vulnerabilities.html The update includes fixes to the following security problems: - CVE-2006-3801/MFSA 2006-44: Code execution through deleted frame reference Thilo Girmann discovered that in certain circumstances a JavaScript reference to a frame or window was not properly cleared when the referenced content went away, and he demonstrated that this pointer to a deleted object could be used to execute native code supplied by the attacker. - CVE-2006-3677/MFSA 2006-45: Javascript navigator Object Vulnerability An anonymous researcher for TippingPoint and the Zero Day Initiative showed that when used in a web page Java would reference properties of the window.navigator object as it started up. If the page replaced the navigator object before starting Java then the browser would crash in a way that could be exploited to run native code supplied by the attacker. - CVE-2006-3113/MFSA 2006-46: Memory corruption with simultaneous events Secunia Research has discovered a vulnerability in Mozilla Firefox 1.5 branch, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to an memory corruption error within the handling of simultaneously happening XPCOM events, which leads to use of a deleted timer object. This generally results in a crash but potentially could be exploited to execute arbitrary code on a user's system when a malicious website is visited. - CVE-2006-3802/MFSA 2006-47: Native DOM methods can be hijacked across domains A malicious page can hijack native DOM methods on a document object in another domain, which will run the attacker's script when called by the victim page. This could be used to steal login cookies, password, or other sensitive data on the target page, or to perform actions on behalf of a logged-in user. Access checks on all other properties and document nodes are performed correctly. This cross-site scripting (XSS) attack is limited to pages which use standard DOM methods of the top-level document object, such as document.getElementById(). This includes many popular sites, especially the newer ones that offer rich interaction to the user. - CVE-2006-3803/MFSA 2006-48: JavaScript new Function race condition H. D. Moore reported a testcase that was able to trigger a race condition where JavaScript garbage collection deleted a temporary variable still being used in the creation of a new Function object. The resulting use of a deleted object may be potentially exploitable to run native code provided by the attacker. - CVE-2006-3804/MFSA 2006-49: Heap buffer overwrite on malformed VCard A VCard attachment with a malformed base64 field (such as a photo) can trigger a heap buffer overwrite. These have proven exploitable in the past, though in this case the overwrite is accompanied by an integer underflow that would attempt to copy more data than the typical machine has, leading to a crash. - CVE-2006-3805/CVE-2006-3806/MFSA 2006-50: JavaScript engine vulnerabilities Continuing our security audit of the JavaScript engine, Mozilla developers found and fixed several potential vulnerabilities. Igor Bukanov and shutdown found additional places where an untimely garbage collection could delete a temporary object that was in active use (similar to MFSA 2006-01 and MFSA 2006-10). Some of these may allow an attacker to run arbitrary code given the right conditions. Georgi Guninski found potential integer overflow issues with long strings in the toSource() methods of the Object, Array and String objects as well as string function arguments. - CVE-2006-3807/MFSA 2006-51: Privilege escalation using named-functions and redefined "new Object()" moz_bug_r_a4 discovered that named JavaScript functions have a parent object created using the standard Object() constructor (ECMA-specified behavior) and that this constructor can be redefined by script (also ECMA-specified behavior). If the Object() constructor is changed to return a reference to a privileged object with useful properties it is possible to have attacker-supplied script excuted with elevated privileges by calling the function. This could be used to install malware or take other malicious actions. Our fix involves calling the internal Object constructor which appears to be what other ECMA-compatible interpreters do. - CVE-2006-3808/MFSA 2006-52: PAC privilege escalation using Function.prototype.call moz_bug_r_a4 reports that a malicious Proxy AutoConfig (PAC) server could serve a PAC script that can execute code with elevated privileges by setting the required FindProxyForURL function to the eval method on a privileged object that leaked into the PAC sandbox. By redirecting the victim to a specially-crafted URL -- easily done since the PAC script controls which proxy to use -- the URL "hostname" can be executed as privileged script. A malicious proxy server can perform spoofing attacks on the user so it was already important to use a trustworthy PAC server. - CVE-2006-3809/MFSA 2006-53: UniversalBrowserRead privilege escalation shutdown reports that scripts granted the UniversalBrowserRead privilege can leverage that into the equivalent of the far more powerful UniversalXPConnect since they are allowed to "read" into a privileged context. This allows the attacker the ability to run scripts with the full privelege of the user running the browser, possibly installing malware or snooping on private data. This has been fixed so that UniversalBrowserRead and UniversalBrowserWrite are limited to reading from and writing into only normally-privileged browser windows and frames. - CVE-2006-3810/MFSA 2006-54: XSS with XPCNativeWrapper(window).Function(...) shutdown reports that cross-site scripting (XSS) attacks could be performed using the construct XPCNativeWrapper(window).Function(...), which created a function that appeared to belong to the window in question even after it had been navigated to the target site. - CVE-2006-3811/MFSA 2006-55: Crashes with evidence of memory corruption As part of the Firefox 1.5.0.5 stability and security release, developers in the Mozilla community looked for and fixed several crash bugs to improve the stability of Mozilla clients. Some of these crashes showed evidence of memory corruption that we presume could be exploited to run arbitrary code with enough effort. - CVE-2006-3812/MFSA 2006-56: chrome: scheme loading remote content Benjamin Smedberg discovered that chrome URL's could be made to reference remote files, which would run scripts with full privilege. There is no known way for web content to successfully load a chrome: url, but if a user could be convinced to do so manually (perhaps by copying a link and pasting it into the location bar) this could be exploited. 2) Solution or Work-Around There is no known workaround, please install the update packages. If you are using the old Mozilla Suite browser we recommend no longer using it, but switching to Mozilla Firefox, konqueror or Opera. 3) Special Instructions and Notes Please close and restart all running instances of Mozilla Firefox after the update. 4) Package Location and Checksums The preferred method for installing security updates is to use the YaST Online Update (YOU) tool. YOU detects which updates are required and automatically performs the necessary steps to verify and install them. Alternatively, download the update packages for your distribution manually and verify their integrity by the methods listed in Section 6 of this announcement. Then install the packages using the command rpm -Fhv <file.rpm> to apply the update, replacing <file.rpm> with the filename of the downloaded RPM package. x86 Platform: SUSE LINUX 10.1: ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/MozillaFirefox-1.5.0.6-1.3… b077ab8d63cbca9fad680e31faa34d80 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/MozillaFirefox-translation… 083893020c930fb8d0d2ac107e6afcb2 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/MozillaThunderbird-1.5.0.5… 857642c909f7184dc1a6441025c57d82 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/MozillaThunderbird-transla… 41cdd09824e46732fe0160d2eea1db13 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/seamonkey-1.0.4-2.1.i586.r… eecf97bedf164629445589bf5fe96f3a ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/seamonkey-calendar-1.0.4-2… 9817cd23edbe982c54e8e9788b068272 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/seamonkey-dom-inspector-1.… acc5e00265da3c37d75dd8467e942523 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/seamonkey-irc-1.0.4-2.1.i5… 7a00bd110f7f36a7adac792b4d385cf2 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/seamonkey-mail-1.0.4-2.1.i… 507c561f4179f75652550dea985fd5c5 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/seamonkey-spellchecker-1.0… 0e528364b0a47d8cc186be99c9273680 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/seamonkey-venkman-1.0.4-2.… 0756055ab6c663c03520a566e748fd84 SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/MozillaFirefox-1.5.0.… 169195ef8d8d6aa42578c52301637a7b ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/MozillaFirefox-transl… ce2ca0073cb95cd52908eca9162f12db ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/MozillaThunderbird-1.… 82c3c849160d835d7dd2e83d58ab46ed SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/MozillaFirefox-1.5.0.6… 45252c09a02b7947e2dcff6c7b2680f7 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/MozillaFirefox-transla… 3f916156c178db203e19854f1be14a6e ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/MozillaThunderbird-1.5… 3878dfec4b42ebf979488794dd5ba153 SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/MozillaFirefox-1.5.0.6… 1a6ec1263972cc8ee19b4b88112cbc91 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/MozillaFirefox-transla… 10b2b66061b686aab364255edfc7330f ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/MozillaThunderbird-1.5… d7a39ac5e59594f326c0a7ebf893025a Power PC Platform: SUSE LINUX 10.1: ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/MozillaFirefox-1.5.0.6-1.3.… beb4517859e09e23b1c1b8e6fe9f7f1b ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/MozillaFirefox-translations… f9f7424e954609520a7dcfa5401aa6a0 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/MozillaThunderbird-1.5.0.5-… a3810db291a8575ec602046534ac0046 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/MozillaThunderbird-translat… 1c3f6bdab05076e177c39900b8796291 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/seamonkey-1.0.4-2.1.ppc.rpm 2a57cf8e9d58c738d08f3457b18c39c8 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/seamonkey-calendar-1.0.4-2.… 5e5b4e2bc287c6b9fa8dcd920bd5691f ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/seamonkey-dom-inspector-1.0… 2b6d0f991fdf834704a717a9da239114 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/seamonkey-irc-1.0.4-2.1.ppc… 8130da7cdb4ece3a5b3ffcd1d8de6604 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/seamonkey-mail-1.0.4-2.1.pp… 42a37ed33a80d3a9c7922b260ec8d017 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/seamonkey-spellchecker-1.0.… 7ed788d6b9eaaa450c7bdef217d1da0b ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/seamonkey-venkman-1.0.4-2.1… 22bef32ee56511c1527f2aba2686c31b SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/MozillaFirefox-1.5.0.6… 7088063ef61fef41e8ae463017bc2e7a ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/MozillaFirefox-transla… 1179980ccb74d1268981a991ea99ef76 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/MozillaThunderbird-1.5… 50989117d508769abe562192f7a29ac0 x86-64 Platform: SUSE LINUX 10.1: ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/MozillaThunderbird-1.5.0… c3c35689ec4183a3f65eadefe0e035f9 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/MozillaThunderbird-trans… c2a68df8c7a37edb184de0d816bc6f40 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/seamonkey-1.0.4-2.1.x86_… 2c9f593099e65d8a4bea1ddb4475b51b ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/seamonkey-calendar-1.0.4… 546d70365782daeae85bc2a5e042bae6 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/seamonkey-dom-inspector-… 1b985d53285222446923fb37d936d759 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/seamonkey-irc-1.0.4-2.1.… c81a87ba73ed766dc25f2b89b98f4f8e ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/seamonkey-mail-1.0.4-2.1… 36ca5818bb717578542d7def4b8724f9 ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/seamonkey-spellchecker-1… 2c798a9aa382ff0bc6f0d44c1861156d ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/seamonkey-venkman-1.0.4-… b6f3a089873cf2df5d82e7fcc4943b28 SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/MozillaThunderbird-… 64b491ee5e76fd81d22e6bc03efe6b86 SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/MozillaThunderbird-1… 5f797b743baa880b609350dce4003e28 SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/MozillaFirefox-1.5.0… 02d00c594d85c27901ac8975ff4074b5 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/MozillaFirefox-trans… c3e1ab3e8bffa3b7fd1f8c93253bd387 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/MozillaThunderbird-1… 409577b2b376df93980071fa6b080638 Sources: SUSE LINUX 10.1: ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/MozillaFirefox-1.5.0.6-1.3.… 8052f82d870aa163544f20fb0e6e2a7e ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/MozillaThunderbird-1.5.0.5-… a6cc091a2379e066d89f30cc4ef4daca ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/seamonkey-1.0.4-2.1.src.rpm 22f8c43051e3f87df2f6c892259b84c1 SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/MozillaFirefox-1.5.0.6… b369c54440dab641eaca7ffacce2fdca ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/MozillaThunderbird-1.5… 3d8939c81652438cc45df2dfafad3401 SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/MozillaFirefox-1.5.0.6-… 6e343044e7c9061e7893d1ad798fb683 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/MozillaThunderbird-1.5.… 520ad8710e85f56082e8f744dd7fa9b4 SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/MozillaFirefox-1.5.0.6-… e102231a46d19c0d05f6e31318a6527e ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/MozillaThunderbird-1.5.… 206929deb348a7ca699d92cda0e4c3e1 Our maintenance customers are notified individually. The packages are offered for installation from the maintenance web: SUSE SLES 10 http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/e429f010d48450b… SLE SDK 10 http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/e429f010d48450b… SUSE SLE 10 DEBUGINFO http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/e429f010d48450b… Novell Linux Desktop 9 for x86 http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/91d3fb6dc75c024… ______________________________________________________________________________ 5) Pending Vulnerabilities, Solutions, and Work-Arounds: See SUSE Security Summary Report. ______________________________________________________________________________ 6) Authenticity Verification and Additional Information - Announcement authenticity verification: SUSE security announcements are published via mailing lists and on Web sites. The authenticity and integrity of a SUSE security announcement is guaranteed by a cryptographic signature in each announcement. All SUSE security announcements are published with a valid signature. To verify the signature of the announcement, save it as text into a file and run the command gpg --verify <file> replacing <file> with the name of the file where you saved the announcement. The output for a valid signature looks like: gpg: Signature made <DATE> using RSA key ID 3D25D3D9 gpg: Good signature from "SuSE Security Team <security(a)suse.de>" where <DATE> is replaced by the date the document was signed. If the security team's key is not contained in your key ring, you can import it from the first installation CD. To import the key, use the command gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc - Package authenticity verification: SUSE update packages are available on many mirror FTP servers all over the world. While this service is considered valuable and important to the free and open source software community, the authenticity and the integrity of a package needs to be verified to ensure that it has not been tampered with. 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) Using the internal gpg signatures of the rpm package 2) MD5 checksums as provided in this announcement 1) The internal 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, replacing <file.rpm> with the filename of the RPM package downloaded. The package is unmodified if it contains a valid signature from build(a)suse.de with the key ID 9C800ACA. This key is automatically imported into the RPM database (on RPMv4-based distributions) and the gpg key ring of 'root' during installation. You can also find it on the first installation CD and at the end of this announcement. 2) If you need an alternative means of verification, use the md5sum command to verify the authenticity of the packages. Execute the command md5sum <filename.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 SUSE security announcement. Because the announcement containing the checksums is cryptographically signed (by security(a)suse.de), the checksums show proof of the authenticity of the package if the signature of the announcement is valid. Note that the md5 sums published in the SUSE Security Announcements are valid for the respective packages only. Newer versions of these packages cannot be verified. - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail 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 e-mail 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>. ===================================================================== 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, the clear text signature should show proof of the authenticity of the text. SUSE Linux Products GmbH provides no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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1 0

Impenetrable firewall - SuSE 9.2
by Keith Hopper 16 Aug '06

16 Aug '06

Greetings, I have a small home network of machines connected through the internal ethernet port of my SuSE linux server (192.168.42.xxx). The external ethernet port is connected to a LinkSys dsl modem (192.168.1.2 on the server to 192.168.1.1 - the modem). I have a fixed IP and the domain name asgard.org.nz to go with it - in the /etc/hosts file against the sever machine name srv too. I set up the firewall so that the local net could access the internet - but not vice versa. All has worked very well for months. By the way the HOSTNAME file appears to contain srv.asgard.org.nz correctly! Needing to publish a small web site now, I have set up apache 2.0.55 suitably configured - which works well on the local network. However, despite the fact that the host (called server.asgard.org.nz on the modem port) has the same name as the Apache ServerName and I appear to have the correct firewall settings as far as my reading of the config file and the examples tells me - ------- # 1 FW_QUICKMODE="no" #2 FW_DEV_EXT="eth-id-00:90:27:a7:d3:d2" #3 FW_DEV_INT="eth-id-00:50:8b:62:08:e6" #4 FW_DEV_DMZ="" #5 FW_ROUTE="yes" #6 FW_MASQUERADE="yes" #6a FW_MASQ_DEV="$FW_DEV_EXT" FW_MASQ_NETS="0/0" #7 FW_PROTECT_FROM_INTERNAL="no" #8 FW_AUTOPROTECT_SERVICES="yes" #9 FW_SERVICES_EXT_TCP="5801 5901 domain http https" FW_SERVICES_EXT_UDP="domain isakmp" FW_SERVICES_EXT_IP="" FW_SERVICES_EXT_RPC="" FW_SERVICES_DMZ_TCP="http https 80" FW_SERVICES_DMZ_UDP="" FW_SERVICES_DMZ_IP="" FW_SERVICES_DMZ_RPC="" FW_SERVICES_INT_TCP="ftp http https 80" FW_SERVICES_INT_UDP="" FW_SERVICES_INT_IP="esp" FW_SERVICES_INT_RPC="mountd nfs nfs_acl ftp nlockmgr status" FW_SERVICES_DROP_EXT="" FW_SERVICES_REJECT_EXT="0/0,tcp,113" #9a FW_SERVICES_QUICK_TCP="" FW_SERVICES_QUICK_UDP="" FW_SERVICES_QUICK_IP="" #10 FW_TRUSTED_NETS="" #11 FW_ALLOW_INCOMING_HIGHPORTS_TCP="" FW_ALLOW_INCOMING_HIGHPORTS_UDP="" #13 FW_FORWARD="" #14 FW_FORWARD_MASQ="" #15 FW_REDIRECT="" #16 FW_LOG_DROP_CRIT="yes" FW_LOG_DROP_ALL="no" FW_LOG_ACCEPT_CRIT="yes" FW_LOG_ACCEPT_ALL="no" FW_LOG_LIMIT="" FW_LOG="" #17 FW_KERNEL_SECURITY="yes" #17a FW_ANTISPOOF="no" #18 FW_STOP_KEEP_ROUTING_STATE="no" #19 FW_ALLOW_PING_FW="yes" #19a FW_ALLOW_PING_DMZ="no" #19b FW_ALLOW_PING_EXT="yes" ## # END of /etc/sysconfig/SuSEfirewall2 ## # EXPERT OPTIONS - all others please don't change these! #20 FW_ALLOW_FW_TRACEROUTE="yes" #21 FW_ALLOW_FW_SOURCEQUENCH="yes" #22 FW_ALLOW_FW_BROADCAST="int" FW_IGNORE_FW_BROADCAST="no" #23 FW_ALLOW_CLASS_ROUTING="no" #25 FW_CUSTOMRULES="" #26 FW_REJECT="no" #27 FW_HTB_TUNE_DEV="" #28 FW_IPv6="" #28a FW_IPv6_REJECT_OUTGOING="yes" #29 FW_IPSEC_TRUST="int" -------------------------------- I cannot seem to get any local browser to access the web server with the external (srv.asgard.org.nz) IP address. I have tried external port scanners and they seem to see no open ports at all. Having spent two days getting nowhere - but learning a lot, I feel I need to humbly ask for help. It's probably something obvious to you experts - sorry, I don't see what might be wrong. Help, please! Keith Hopper -- Sky Development

11 15

Re: [suse-sles-e] A bug in SLES10
by shashi 14 Aug '06

14 Aug '06

Michael Calmer wrote: > Hi, > > some questions. > > - does your proxy require authentication? No > > - the browser is started, but it does not get a connect? Yes > Do you use GNOME desktop enviroment? Yes > If yes. There should be a GNOME control center where you can > configure proxy setting. Have a look if they are correct. Yes > > - The URL which will be called is displayed in the yast popup before the > browser starts. Try to copy this URL in your favorite browser (with correct > proxy settings, of course :-) Does this work? Yes , opened the URL in Firefox, and given the details. > > After successful registration via web, please start the yast2 module again > to get the update sources. Yes , after above step , i am getting updates. > > - There might be problems with the proxy settings and zmd. zmd is started > before you entered the proxy values via yast2. Have a look if the enviroment > variables are set correctly (echo $https_proxy) and then restart zmd > (rczmd restart). Yes , environment variables are set correctly. > > If your proxy requires authentication call "rug get" and you can see two > keys (proxy-username and proxy-password). With "rug set <key> <value>" you > can edit these values. > > Am Sonntag, 13. August 2006 13:33 schrieb shashi: >> It looks like , there is a bug in YaST "Novell Customer Center >> Configuration module" module. I can't register my SLES10 license key >> with Novell site if my network is a proxied. I have defined my proxy >> variables in firefox and in YaST proxy module. Whenever i open YaST >> Novell Customer Center Configuration module , and when it tries to open >> a browser , it will simply say "not able to connect Novell site" . This >> YaST module is invoking mozilla-xulrunner program , it seems to be there >> is a problem with mozilla-xulrunner package which is included in SLES10. >> From google, i found there patch available to solve this issue with >> OpenSUSE 10.1 , but this patch not yet resealed for SLES10. I am >> wondering, how this issue not discovered in the beta testing process. >> >> Novell folks, please solve this issue ASAP. >> >> Thanks & Regards, >> Shashi Kanth >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: suse-sles-e-unsubscribe(a)suse.com >> For additional commands, e-mail: suse-sles-e-help(a)suse.com >

1 0

A bug in SLES10
by shashi 13 Aug '06

13 Aug '06

It looks like , there is a bug in YaST "Novell Customer Center Configuration module" module. I can't register my SLES10 license key with Novell site if my network is a proxied. I have defined my proxy variables in firefox and in YaST proxy module. Whenever i open YaST Novell Customer Center Configuration module , and when it tries to open a browser , it will simply say "not able to connect Novell site" . This YaST module is invoking mozilla-xulrunner program , it seems to be there is a problem with mozilla-xulrunner package which is included in SLES10. From google, i found there patch available to solve this issue with OpenSUSE 10.1 , but this patch not yet resealed for SLES10. I am wondering, how this issue not discovered in the beta testing process. Novell folks, please solve this issue ASAP. Thanks & Regards, Shashi Kanth

2 1

SPAM: nntp client behind suse firewall
by wpc 05 Aug '06

05 Aug '06

NNTP works well on my firewall, but doesn't work at all on client computers that reside behind my firewall. i put this iptables line in my custom firewall script file. under "fw_custom_after_antispoofing()" i have iptables -N network1_in iptables -N network1_out iptables -A FORWARD -i eth2 -o eth1 -j network1_in iptables -A FORWARD -i eth1 -o eth2 -j network1_out iptables -t nat -A POSTROUTING -o eth2 -p tcp -s $mynet --sport 1024:65535 -d 0/0 --dport 119 -j SNAT --to $my_ext_ip iptables -A network1_out -p tcp -s $mynet --sport 1024:65535 -d 0/0 --dport 119 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A network1_in -p tcp -s 0/0 --sport 119 -d $mynet --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT but it still doesn't work ? what could be the problem ? "Who the heck is General Failure, and why is he reading my harddisk?" __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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openSUSE Security August 2006