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CVE-2012-0021

Published: 27 January 2012

The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.

Notes

AuthorNote
tyhicks
apache2-mpm-worker is likely the only apache2-mpm affected

Priority

Medium

Status

Package Release Status
apache2
Launchpad, Ubuntu, Debian
upstream Needs triage

hardy Not vulnerable

lucid Not vulnerable

maverick Not vulnerable
(2.2.16-1ubuntu3.4)
natty
Released (2.2.17-1ubuntu1.5)
oneiric
Released (2.2.20-1ubuntu1.2)
Patches:
upstream: http://svn.apache.org/viewvc?view=revision&revision=1227292