Security Information / 2016 / Security Information -- DSA-3443-1 libpng

Debian Security Advisory

DSA-3443-1 libpng -- security update

Date Reported:

13 Jan 2016

Affected Packages:

libpng

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 807112, Bug 807694.
In Mitre's CVE dictionary: CVE-2015-8472, CVE-2015-8540.

More information:

Several vulnerabilities have been discovered in the libpng PNG library. The Common Vulnerabilities and Exposures project identifies the following problems:

• CVE-2015-8472

  It was discovered that the original fix for CVE-2015-8126 was incomplete and did not detect a potential overrun by applications using png_set_PLTE directly. A remote attacker can take advantage of this flaw to cause a denial of service (application crash).

• CVE-2015-8540

  Xiao Qixue and Chen Yu discovered a flaw in the png_check_keyword function. A remote attacker can potentially take advantage of this flaw to cause a denial of service (application crash).

For the oldstable distribution (wheezy), these problems have been fixed in version 1.2.49-1+deb7u2.

For the stable distribution (jessie), these problems have been fixed in version 1.2.50-2+deb8u2.

We recommend that you upgrade your libpng packages.