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SuSE alert SUSE-SA:2007:019 (MozillaFirefox,seamonkey)

From:  Marcus Meissner <>
Subject:  [suse-security-announce] SUSE Security Announcement: MozillaFirefox (SUSE-SA:2007:019)
Date:  Tue, 06 Mar 2007 17:59:46 +0100

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: MozillaFirefox,seamonkey Announcement ID: SUSE-SA:2007:019 Date: Tue, 06 Mar 2007 18:00:00 +0000 Affected Products: SUSE LINUX 9.3 SUSE LINUX 10.0 SUSE LINUX 10.1 openSUSE 10.2 Novell Linux Desktop 9 SUSE SLED 10 SUSE SLES 10 Vulnerability Type: remote code execution Severity (1-10): 6 SUSE Default Package: yes Cross-References: CVE-2006-6077, CVE-2007-0008, CVE-2007-0009 CVE-2007-0775, CVE-2007-0776, CVE-2007-0777 CVE-2007-0778, CVE-2007-0779, CVE-2007-0780 CVE-2007-0800, CVE-2007-0981, CVE-2007-0994 CVE-2007-0995, CVE-2007-0996, CVE-2007-1092 MFSA 2006-72, MFSA 2007-01, MFSA 2007-02 MFSA 2007-03, MFSA 2007-04, MFSA 2007-05 MFSA 2007-06, MFSA 2007-08, MFSA 2007-09 Content of This Advisory: 1) Security Vulnerability Resolved: Mozilla Firefox security release / 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 web browser was updated to security update version on older products and Mozilla Firefox to version on openSUSE 10.2 to fix various security issues. Updates for the Mozilla seamonkey suite before 10.2, Mozilla Suite and Mozilla Thunderbird are still pending. Full details can be found on: - MFSA 2007-01: As part of the Firefox and update releases several bugs were fixed to improve the stability of the browser. Some of these were crashes that showed evidence of memory corruption and we presume that with enough effort at least some of these could be exploited to run arbitrary code. These fixes affected the layout engine (CVE-2007-0775), SVG renderer (CVE-2007-0776) and javascript engine (CVE-2007-0777). - MFSA 2007-02: Various enhancements were done to make XSS exploits against websites less effective. These included fixes for invalid trailing characters (CVE-2007-0995), child frame character set inheritance (CVE-2007-0996), password form injection (CVE-2006-6077), and the Adobe Reader universal XSS problem. - MFSA 2007-03/CVE-2007-0778: AAd reported a potential disk cache collision that could be exploited by remote attackers to steal confidential data or execute code. - MFSA 2007-04/CVE-2007-0779: David Eckel reported that browser UI elements--such as the host name and security indicators--could be spoofed by using a large, mostly transparent, custom cursor and adjusting the CSS3 hot-spot property so that the visible part of the cursor floated outside the browser content area. - MFSA 2007-05: Manually opening blocked popups could be exploited by remote attackers to allow XSS attacks (CVE-2007-0780) or to execute code in local files (CVE-2007-0800). - MFSA 2007-06: Two buffer overflows were found in the NSS handling of Mozilla. CVE-2007-0008: SSL clients such as Firefox and Thunderbird can suffer a buffer overflow if a malicious server presents a certificate with a public key that is too small to encrypt the entire "Master Secret". Exploiting this overflow appears to be unreliable but possible if the SSLv2 protocol is enabled. CVE-2007-0009: Servers that use NSS for the SSLv2 protocol can be exploited by a client that presents a "Client Master Key" with invalid length values in any of several fields that are used without adequate error checking. This can lead to a buffer overflow that presumably could be exploitable. - MFSA 2007-06/CVE-2007-0981: Michal Zalewski demonstrated that setting location.hostname to a value with embedded null characters can confuse the browsers domain checks. Setting the value triggers a load, but the networking software reads the hostname only up to the null character while other checks for "parent domain" start at the right and so can have a completely different idea of what the current host is. - MFSA 2007-08/CVE-2007-1092: Michal Zalewski reported a memory corruption vulnerability in Firefox involving mixing the onUnload event handler and self-modifying document.write() calls. This flaw was introduced in Firefox and and does not affect earlier versions; it is fixed in Firefox and - MFSA 2007-09/CVE-2007-0994: moz_bug_r_a4 reports that the fix for MFSA 2006-72 in Firefox and Firefox introduced a regression that allows scripts from web content to execute arbitrary code by setting the src attribute of an IMG tag to a specially crafted javascript: URI. The same regression also caused javascript: URIs in IMG tags to be executed even if JavaScript execution was disabled in the global preferences. This facet was noted by moz_bug_r_a4 and reported independently by Anbo Motohiko. 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. x86 Platform: openSUSE 10.2: 02e3d51d0b3420cc9397760f0e86d191 7b0f32ecd094d7eef87733b3e3476673 84df0ff9847008b5db52b4c1ae934210 f90f3afd0bff86b4da3dbb05a2c2335d 80ac7fdac2cc547c76b5eedd482bb082 91992945df0728e4260ae2ddfb7d3281 a4c38e8b67b32883b7d2a8c43672e762 907c12a9bb1662652126d643fe851fcc SUSE LINUX 10.1: 6e55236e3b80b3894969c655f9ebf2a4 6d61e4d6e1d6dbc9445cc3f6b6ed30e3 SUSE LINUX 10.0: d94fa79fb7f0de31f8d9f90baa617ca1 1d3fddf5349977a9caead4b47878e51d SUSE LINUX 9.3: f6e7cc76afc0fef155553f735fe653b7 9e7435497cd97dcd1f38105a6b080d8c Power PC Platform: openSUSE 10.2: 5c6b5efd358c074106dcef14acb89f23 1a6991caad9a490822710e4fcf838c9c c0dc8bbb08a3d06b656258a86710bc45 c834417d2d1db92f284a12c9f88f71d0 469a2f5b1968979582291477e83260dd 21d9f56ac5b93d70f47eba112505e209 c550ce638db6e7f8d7fb3f3e037de53a 58c4aced409456293248113d32a00dbf SUSE LINUX 10.1: 4140a6709fabce8a52a9ccaeaeb7bb1a ac0d3d387e2f1930f331fee0800e462b SUSE LINUX 10.0: 76e3f52dd691ca5b652edce6c697070f 3652ee25f11e32a518294ad8b4314b23 x86-64 Platform: openSUSE 10.2: ae21afdc3451c6517c228b7cb012bbc7 9ec91717a80c8ad5947d6d6e2fc99d01 aa9b1d5d7cf62fcc990aabcae84e7c39 d8ac0deb3f11edc0439ce11153a04fbe 1554c4a8c75564ae02c720455f29775b 779e371deec7bf589bda6b3d6fdd4069 2ffba2b0ea7bbaf5806e03c7ffe58ac4 3761ab7b9fc06cc114a609c322d18803 Sources: openSUSE 10.2: f77b9222e0a60e6638a3e0f343fea209 ae42228f39110de8d0699694458ff88e SUSE LINUX 10.1: 8f80ec015760d1fd3d25f30be2d5ef01 SUSE LINUX 10.0: 748849a36a1990fea5bdb75b3bd0bcf3 SUSE LINUX 9.3: f7d79ad15eeed3798e91a31cace3022d Our maintenance customers are notified individually. The packages are offered for installation from the maintenance web: Novell Linux Desktop 9 Novell Linux Desktop 9 for x86 SUSE SLES 10 SUSE SLED 10 ______________________________________________________________________________ 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 <>" 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 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, 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: - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail to <>. - SUSE's announce-only mailing list. Only SUSE's security announcements are sent to this list. To subscribe, send an e-mail to <>. ===================================================================== SUSE's security contact is <> or <>. The <> 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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