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Debian Security Advisory DSA-2366-1 security@debian.org
http://www.debian.org/security/ Jonathan Wiltshire
December 18, 2011 http://www.debian.org/security/faq
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Package : mediawiki
Vulnerability : multiple
Problem type : remote
Debian-specific: no
CVE ID : CVE-2011-1578 CVE-2011-1579 CVE-2011-1580 CVE-2011-1587
CVE-2011-4360 CVE-2011-4361
Debian Bug : 650434
Several problems have been discovered in mediawiki, a website engine for
collaborative work.
CVE-2011-1578 CVE-2011-1587
Masato Kinugawa discovered a cross-site scripting (XSS) issue, which
affects Internet Explorer clients only, and only version 6 and
earlier. Web server configuration changes are required to fix this
issue. Upgrading MediaWiki will only be sufficient for people who use
Apache with AllowOverride enabled.
For details of the required configuration changes, see the upstream
announcements:
http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-April/000096.html
http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-April/000097.html
CVE-2011-1579
Wikipedia user Suffusion of Yellow discovered a CSS validation error
in the wikitext parser. This is an XSS issue for Internet Explorer
clients, and a privacy loss issue for other clients since it allows
the embedding of arbitrary remote images.
CVE-2011-1580
MediaWiki developer Happy-Melon discovered that the transwiki import
feature neglected to perform access control checks on form submission.
The transwiki import feature is disabled by default. If it is enabled,
it allows wiki pages to be copied from a remote wiki listed in
$wgImportSources. The issue means that any user can trigger such an
import to occur.
CVE-2011-4360
Alexandre Emsenhuber discovered an issue where page titles on private
wikis could be exposed bypassing different page ids to index.php. In the
case of the user not having correct permissions, they will now be redirected
to Special:BadTitle.
CVE-2011-4361
Tim Starling discovered that action=ajax requests were dispatched to the
relevant function without any read permission checks being done. This could
have led to data leakage on private wikis.
For the oldstable distribution (lenny), these problems have been fixed in
version 1:1.12.0-2lenny9.
For the stable distribution (squeeze), these problems have been fixed in
version 1:1.15.5-2squeeze2.
For the unstable distribution (sid), these problems have been fixed in
version 1:1.15.5-5.
We recommend that you upgrade your mediawiki packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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