A nginx security update has been released for Debian GNU/Linux

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Debian Security Advisory DSA-2721-1 security@debian.org
http://www.debian.org/security/ Nico Golde
July 07, 2013 http://www.debian.org/security/faq
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Package : nginx
Vulnerability : buffer overflow
Problem type : remote
Debian-specific: no
CVE ID : CVE-2013-2070
Debian Bug : 708164

A buffer overflow has been identified in nginx, a small, powerful,
scalable web/proxy server, when processing certain chunked transfer
encoding requests if proxy_pass to untrusted upstream HTTP servers is
used. An attacker may use this flaw to perform denial of service
attacks, disclose worker process memory, or possibly execute arbitrary
code.

The oldstable distribution (squeeze), is not affected by this problem.

For the stable distribution (wheezy), this problem has been fixed in
version 1.2.1-2.2+wheezy1.

For the unstable distribution (sid), this problem has been fixed in
version 1.4.1-1.

We recommend that you upgrade your nginx 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/

  DSA 2721-1: nginx security update