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Message-Id: <E1WO6Mb-0004gU-48@titan.mandriva.com> Date: Thu, 13 Mar 2014 15:12:00 +0100 From: security@...driva.com To: full-disclosure@...ts.grok.org.uk Subject: [ MDVSA-2014:057 ] mediawiki -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 _______________________________________________________________________ Mandriva Linux Security Advisory MDVSA-2014:057 http://www.mandriva.com/en/support/security/ _______________________________________________________________________ Package : mediawiki Date : March 13, 2014 Affected: Business Server 1.0 _______________________________________________________________________ Problem Description: Updated mediawiki packages fix multiple vulnerabilities: MediaWiki user Michael M reported that the fix for CVE-2013-4568 allowed insertion of escaped CSS values which could pass the CSS validation checks, resulting in XSS (CVE-2013-6451). Chris from RationalWiki reported that SVG files could be uploaded that include external stylesheets, which could lead to XSS when an XSL was used to include JavaScript (CVE-2013-6452). During internal review, it was discovered that MediaWiki's SVG sanitization could be bypassed when the XML was considered invalid (CVE-2013-6453). During internal review, it was discovered that MediaWiki displayed some information about deleted pages in the log API, enhanced RecentChanges, and user watchlists (CVE-2013-6472). Netanel Rubin from Check Point discovered a remote code execution vulnerability in MediaWiki's thumbnail generation for DjVu files. Internal review also discovered similar logic in the PdfHandler extension, which could be exploited in a similar way (CVE-2014-1610). MediaWiki before 1.22.3 does not block unsafe namespaces, such as a W3C XHTML namespace, in uploaded SVG files. Some client software may use these namespaces in a way that results in XSS. This was fixed by disallowing uploading SVG files using non-whitelisted namespaces (CVE-2014-2242). MediaWiki before 1.22.3 performs token comparison that may be vulnerable to timing attacks. This was fixed by making token comparison use constant time (CVE-2014-2243). MediaWiki before 1.22.3 could allow an attacker to perform XSS attacks, due to flaw with link handling in api.php. This was fixed such that it won't find links in the middle of api.php links (CVE-2014-2244). MediaWiki has been updated to version 1.22.3, which fixes these issues, as well as several others. Also, the mediawiki-ldapauthentication and mediawiki-math extensions have been updated to newer versions that are compatible with MediaWiki 1.22. Additionally, the mediawiki-graphviz extension has been obsoleted, due to the fact that it is unmaintained upstream and is vulnerable to cross-site scripting attacks. Note: if you were using the instances feature in these packages to support multiple wiki instances, this feature has now been removed. You will need to maintain separate wiki instances manually. _______________________________________________________________________ References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6451 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6452 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6453 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6472 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-1610 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2242 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2243 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2244 http://advisories.mageia.org/MGASA-2014-0113.html http://advisories.mageia.org/MGASA-2014-0124.html _______________________________________________________________________ Updated Packages: Mandriva Business Server 1/X86_64: 0763c6b913556fd3d098e14e6711d4c9 mbs1/x86_64/mediawiki-1.22.3-1.mbs1.noarch.rpm 3f3d638b7a09dfc700a56f06a0e06629 mbs1/x86_64/mediawiki-ldapauthentication-2.0f-1.mbs1.noarch.rpm c1bdd7ff8e5ab29f74891cb4fa92bff0 mbs1/x86_64/mediawiki-mysql-1.22.3-1.mbs1.noarch.rpm 6cd761769b330e837612ed079816019f mbs1/x86_64/mediawiki-pgsql-1.22.3-1.mbs1.noarch.rpm e484574d3776723c87e46a832daf3c4a mbs1/x86_64/mediawiki-sqlite-1.22.3-1.mbs1.noarch.rpm 870886ea628aaac381b4ab4210e33ea0 mbs1/SRPMS/mediawiki-1.22.3-1.mbs1.src.rpm bfbd6cc7fb3ce82be5c01564c5bfddde mbs1/SRPMS/mediawiki-ldapauthentication-2.0f-1.mbs1.src.rpm _______________________________________________________________________ To upgrade automatically use MandrivaUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you. All packages are signed by Mandriva for security. You can obtain the GPG public key of the Mandriva Security Team by executing: gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98 You can view other update advisories for Mandriva Linux at: http://www.mandriva.com/en/support/security/advisories/ If you want to report vulnerabilities, please contact security_(at)_mandriva.com _______________________________________________________________________ Type Bits/KeyID Date User ID pub 1024D/22458A98 2000-07-10 Mandriva Security Team <security*mandriva.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iD8DBQFTIZKGmqjQ0CJFipgRAjIFAKCLVeGKatrjL2G/cYBZKCkekZ+BrgCdGfjO aivXRBBXbumCTNMTeujkTrc= =5vFM -----END PGP SIGNATURE----- _______________________________________________ Full-Disclosure - We believe in it. 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