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SUSE Security Announcement
Package: MozillaFirefox Announcement ID: SUSE-SA:2009:023 Date: Mon, 20 Apr 2009 11:00:00 +0000 Affected Products: openSUSE 10.3 SUSE Linux Enterprise Desktop 10 SP2 SUSE Linux Enterprise 10 SP2 DEBUGINFO SUSE Linux Enterprise Server 10 SP2 Vulnerability Type: remote code execution Severity (1-10): 8 SUSE Default Package: yes Cross-References: CVE-2009-0040, CVE-2009-0352, CVE-2009-0353 CVE-2009-0772, CVE-2009-0774, CVE-2009-0776 CVE-2009-1169, MFSA 2009-01, MFSA 2009-07 MFSA 2009-09, MFSA 2009-10, MFSA 2009-12
Content of This Advisory: 1) Security Vulnerability Resolved: Mozilla Firefox 2 security update 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
The Mozilla Firefox Browser was refreshed to the current MOZILLA_1_8 branch state around fix level 22.214.171.124, backporting various security fixes from the Firefox 3.0.8 browser version.
Security issues identified as being fixed are: MFSA 2009-01 / CVE-2009-0352 / CVE-2009-0353: Mozilla developers identified and fixed several stability bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these crashes showed evidence of memory corruption under certain circumstances and we presume that with enough effort at least some of these could be exploited to run arbitrary code.
MFSA 2009-07 / CVE-2009-0772 / CVE-2009-0774: Mozilla developers identified and fixed several stability bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these crashes showed evidence of memory corruption under certain circumstances and we presume that with enough effort at least some of these could be exploited to run arbitrary code.
MFSA 2009-09 / CVE-2009-0776: Mozilla security researcher Georgi Guninski reported that a website could use nsIRDFService and a cross-domain redirect to steal arbitrary XML data from another domain, a violation of the same-origin policy. This vulnerability could be used by a malicious website to steal private data from users authenticated to the redirected website.
MFSA 2009-10 / CVE-2009-0040: Google security researcher Tavis Ormandy reported several memory safety hazards to the libpng project, an external library used by Mozilla to render PNG images. These vulnerabilities could be used by a malicious website to crash a victim's browser and potentially execute arbitrary code on their computer. libpng was upgraded to version 1.2.35 which contains fixes for these flaws.
MFSA 2009-12 / CVE-2009-1169: Security researcher Guido Landi discovered that a XSL stylesheet could be used to crash the browser during a XSL transformation. An attacker could potentially use this crash to run arbitrary code on a victim's computer. This vulnerability was also previously reported as a stability problem by Ubuntu community member, Andre. Ubuntu community member Michael Rooney reported Andre's findings to Mozilla, and Mozilla community member Martin helped reduce Andre's original test case and contributed a patch to fix the vulnerability.
2) Solution or Work-Around
There is no known workaround, please install the update packages.
3) Special Instructions and Notes
Please close and restart all running instances of 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.
Power PC Platform:
Our maintenance customers are notified individually. The packages are offered for installation from the maintenance web:
SUSE Linux Enterprise Server 10 SP2 SUSE Linux Enterprise Desktop 10 SP2 SUSE Linux Enterprise 10 SP2 DEBUGINFO http://download.novell.com/index.jsp?search=Search&set_restricted=true&a...
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 email@example.com"
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.
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 firstname.lastname@example.org 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.
- SUSE runs two security mailing lists to which any interested party may subscribe:
email@example.com - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail to firstname.lastname@example.org.
email@example.com - SUSE's announce-only mailing list. Only SUSE's security announcements are sent to this list. To subscribe, send an e-mail to firstname.lastname@example.org.
===================================================================== SUSE's security contact is email@example.com or firstname.lastname@example.org. The email@example.com 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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