Debian Security Advisory

DSA-2721-1 nginx -- buffer overflow

Date Reported:
07 Jul 2013
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 708164.
In Mitre's CVE dictionary: CVE-2013-2070.
More information:

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.