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Fedora 21: 2015-5570 Critical: mediawiki DoS and XSS Fixes

fedora
Calendar Grey April 18, 2015
Scroller Fedora
This patch for mediawiki on Fedora 21 resolves multiple vulnerabilities and enhances the overall security framework.
Changes since 1.24.1 * (bug T85848, bug T71210) SECURITY: Don't parse XMP blocks that contain XML entities, to prevent various DoS attacks

Summary

MediaWiki is the software used for Wikipedia and the other Wikimedia

Foundation websites. Compared to other wikis, it has an excellent

range of features and support for high-traffic websites using multiple

servers

This package supports wiki farms. Read the instructions for creating wiki

instances under /usr/share/doc/mediawiki/README.RPM.

Remember to remove the config dir after completing the configuration.

Update Information:

Changes since 1.24.1

* (bug T85848, bug T71210) SECURITY: Don't parse XMP blocks that contain XML entities, to prevent various DoS attacks. * (bug T85848) SECURITY: Don't allow directly calling Xml::isWellFormed, to reduce likelihood of DoS. * (bug T88310) SECURITY: Always expand xml entities when checking SVG's. * (bug T73394) SECURITY: Escape > in Html::expandAttributes to prevent XSS. * (bug T85855) SECURITY: Don't execute another user's CSS or JS on preview. * (bug T64685) SECURITY: Allow setting maximal password length to prevent DoS when using PBKDF2. * (bug T85349, bug T85850, bug T86711) SECURITY: Multiple issues fixed in SVG filtering to prevent XSS and protect viewer's privacy. * Fix case of SpecialAllPages/SpecialAllMessages in SpecialPageFactory to fix loading these special pages when $wgAutoloadAttemptLowercase is false. * (bug T70087) Fix Special:ActiveUsers page for installations using PostgreSQL. * (bug T76254) Fix deleting of pages with PostgreSQL. Req...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory security issue critical Fedora XSS DoS mediawiki

Change Log

* Wed Apr 1 2015 Michael Cronenworth - 1.24.2-1 - Update to 1.24.2 - (bug T85848, bug T71210) SECURITY: Don't parse XMP blocks that contain XML entities, to prevent various DoS attacks. - (bug T85848) SECURITY: Don't allow directly calling Xml::isWellFormed, to reduce likelihood of DoS. - (bug T88310) SECURITY: Always expand xml entities when checking SVG's. - (bug T73394) SECURITY: Escape > in Html::expandAttributes to prevent XSS. - (bug T85855) SECURITY: Don't execute another user's CSS or JS on preview. - (bug T64685) SECURITY: Allow setting maximal password length to prevent DoS when using PBKDF2. - (bug T85349, bug T85850, bug T86711) SECURITY: Multiple issues fixed in SVG filtering to prevent XSS and protect viewer's privacy. - Fix case of SpecialAllPages/SpecialAllMessages in SpecialPageFactory to fix loading these special pages when $wgAutoloadAttemptLowercase is false. - (bug T70087) Fix Special:ActiveUsers page for installations using PostgreSQL. - (bug T76254) Fix deleting of pages with PostgreSQL. Requires a schema change and running update.php to fix. * Thu Dec 18 2014 Michael Cronenworth - 1.24.1-1 - Update to 1.24.1 - (bug T76686) [SECURITY] thumb.php outputs wikitext message as raw HTML, which could lead to xss. Permission to edit MediaWiki namespace is required to exploit this. - (bug T77028) [SECURITY] Malicious site can bypass CORS restrictions in $wgCrossSiteAJAXdomains in API calls if it only included an allowed domain as part of its name. - (bug T74222) The original patch for T74222 was reverted as unnecessary. - Fixed a couple of entries in RELEASE-NOTES-1.24. - (bug T76168) OutputPage: Add accessors for some protected properties. - (bug T74834) Make 1.24 branch directly installable under PostgreSQL. * Fri Nov 28 2014 Michael Cronenworth - 1.24.0-1 - Update to 1.24.0 - Release notes: https://www.mediawiki.org/wiki/Release_notes/1.24

References


[ 1 ] Bug #1208072 - mediawiki: mediawiki: security issues fixed in the 1.24.2, 1.23.9, and 1.19.24 releases https://bugzilla.redhat.com/show_bug.cgi?id=1208072

Update Instructions

This update can be installed with the "yum" update program. Use su -c 'yum update mediawiki' at the command line. For more information, refer to "Managing Software with yum", available at .

Severity
critical
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Name: mediawiki
Product: Fedora 21
Version: 1.24.2
Release: 1.fc21
URL: https://www.mediawiki.org/wiki/MediaWiki
Summary: A wiki engine

Topics%20covered

Topics Covered

security advisory security issue critical Fedora XSS DoS mediawiki

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