TITLE:
MediaWiki Edit Comment Formatting Denial of Service

SECUNIA ADVISORY ID:
SA18711

VERIFY ADVISORY:
http://secunia.com/advisories/18711/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
MediaWiki 1.x
http://secunia.com/product/2546/

DESCRIPTION:
A vulnerability has been reported in MediaWiki, which potentially can
be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within the handling of
edit comment formatting. This can be exploited to cause PHP to go
into an infinite loop, potentially consuming a large amount of CPU
resources, via certain malformed links.

Note: The script will reportedly be terminated after PHP's 30 seconds
failsafe timeout.

The vulnerability has been reported in version 1.4.x prior to 1.4.14,
and in 1.5.x prior to 1.5.6.

SOLUTION:
Update to version 1.4.14. or 1.5.6.
http://sourceforge.net/project/showfiles.php?group_id=34373

PROVIDED AND/OR DISCOVERED BY:
Reported  by vendor.

ORIGINAL ADVISORY:
http://sourceforge.net/project/shownotes.php?release_id=386608
http://sourceforge.net/project/shownotes.php?release_id=386609

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About:
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vulnerabilities.

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http://secunia.com/about_secunia_advisories/


Please Note:
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Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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