GLSA 201611-08: libpng: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	libpng: Multiple vulnerabilities
Date:	11/15/2016
Bugs:	#564244, #565678, #568216
ID:	201611-08

Synopsis

Multiple vulnerabilities have been found in libpng, the worst of which may allow remote attackers to cause Denial of Service.

Background

libpng is a standard library used to process PNG (Portable Network Graphics) images. It is used by several other programs, including web browsers and potentially server processes.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-libs/libpng	< 1.6.21	>= 1.2.56	All supported architectures

Description

Multiple vulnerabilities were found in libpng. Please review the referenced CVE’s for additional information.

Impact

Remote attackers could cause a Denial of Service condition or have other unspecified impacts.

Workaround

There is no known workaround at this time.

Resolution

All libpng 1.2 users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.56"

All libpng 1.5 users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.5.26"

All libpng 1.6 users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.6.21"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201611-08.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.