USN-2426-1: FLAC vulnerabilities

27 November 2014

flac vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 14.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS


FLAC could be made to crash or run programs as your login if it opened a specially crafted file.

Software Description

  • flac - Free Lossless Audio Codec


Michele Spagnuolo discovered that FLAC incorrectly handled certain malformed audio files. An attacker could use this issue to cause FLAC to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.10
libflac++6 - 1.3.0-2ubuntu0.14.10.1
libflac8 - 1.3.0-2ubuntu0.14.10.1
Ubuntu 14.04 LTS
libflac++6 - 1.3.0-2ubuntu0.14.04.1
libflac8 - 1.3.0-2ubuntu0.14.04.1
Ubuntu 12.04 LTS
libflac++6 - 1.2.1-6ubuntu0.1
libflac8 - 1.2.1-6ubuntu0.1
Ubuntu 10.04 LTS
libflac++6 - 1.2.1-2ubuntu0.1
libflac8 - 1.2.1-2ubuntu0.1

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.