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Mandriva: 2014:057: mediawiki Print E-mail
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Posted by Benjamin D. Thomas   
Mandrake 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). [More...]

 Mandriva Linux Security Advisory                         MDVSA-2014:057

 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
 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
 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
 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.


 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 0x22458A98

 You can view other update advisories for Mandriva Linux at:

 If you want to report vulnerabilities, please contact

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