An APR security update has been released for Debian GNU/Linux

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Debian Security Advisory DSA-2237-1 security@debian.org
http://www.debian.org/security/ Stefan Fritsch
May 15, 2011 http://www.debian.org/security/faq
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Package : apr
Vulnerability : denial of service
Problem type : remote
Debian-specific: no
CVE ID : CVE-2011-0419


A flaw was found in the APR library, which could be exploited through
Apache HTTPD's mod_autoindex. If a directory indexed by mod_autoindex
contained files with sufficiently long names, a remote attacker could
send a carefully crafted request which would cause excessive CPU
usage. This could be used in a denial of service attack.

For the oldstable distribution (lenny), this problem has been fixed in
version 1.2.12-5+lenny3.

For the stable distribution (squeeze), this problem has been fixed in
version 1.4.2-6+squeeze1.

For the testing distribution (wheezy), this problem will be fixed in
version 1.4.4-1.

For the unstable distribution (sid), this problem has been fixed in
version 1.4.4-1.

We recommend that you upgrade your apr packages and restart the
apache2 server.

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/