[SECURITY] [DSA 2287-1] libpng security update

Type debian
Reporter Debian
Modified 2011-07-28T16:39:09


Debian Security Advisory DSA-2287-1 security@debian.org http://www.debian.org/security/ Luciano Bello July 28, 2011 http://www.debian.org/security/faq

Package : libpng Vulnerability : several Problem type : remote Debian-specific: no CVE ID : CVE-2011-2501 CVE-2011-2690 CVE-2011-2691 CVE-2011-2692 Debian Bug : #632786 #633871

The PNG library libpng has been affected by several vulnerabilities. The most critical one is the identified as CVE-2011-2690. Using this vulnerability, an attacker is able to overwrite memory with an arbitrary amount of data controlled by her via a crafted PNG image.

The other vulnerabilities are less critical and allow an attacker to cause a crash in the program (denial of service) via a crafted PNG image.

For the oldstable distribution (lenny), this problem has been fixed in version 1.2.27-2+lenny5. Due to a technical limitation in the Debian archive processing scripts, the updated packages cannot be released in paralell with the packages for Squeeze. They will appear shortly.

For the stable distribution (squeeze), this problem has been fixed in version 1.2.44-1+squeeze1.

For the unstable distribution (sid), this problem has been fixed in version 1.2.46-1.

We recommend that you upgrade your libpng 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/

Mailing list: debian-security-announce@lists.debian.org