Visit our newest sister site!
Hundreds of free aircraft flight manuals
Civilian • Historical • Military • Declassified • FREE!


TUCoPS :: Linux :: Gentoo :: tb13386.htm

FLAC: Buffer overflow



FLAC: Buffer overflow
FLAC: Buffer overflow



-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200711-15
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/ 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: FLAC: Buffer overflow
      Date: November 12, 2007
      Bugs: #195700
        ID: 200711-15

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=======
Multiple integer overflow vulnerabilities were found in FLAC possibly
allowing for the execution of arbitrary code.

Background
=========
The Xiph.org Free Lossless Audio Codec (FLAC) library is the reference
implementation of the FLAC audio file format. It contains encoders and
decoders in library and executable form.

Affected packages
================
    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  media-libs/flac     < 1.2.1-r1                        >= 1.2.1-r1

Description
==========
Sean de Regge reported multiple integer overflows when processing FLAC
media files that could lead to improper memory allocations resulting in
heap-based buffer overflows.

Impact
=====
A remote attacker could entice a user to open a specially crafted FLAC
file or network stream with an application using FLAC. This might lead
to the execution of arbitrary code with privileges of the user playing
the file.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All FLAC users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/flac-1.2.1-r1"

You should also run revdep-rebuild to rebuild any packages that depend
on older versions of FLAC:

    # revdep-rebuild --library=libFLAC.*

References
=========
  [ 1 ] CVE-2007-4619
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4619 

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200711-15.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 
http://bugs.gentoo.org. 

License
======
Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5 
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org 

iD8DBQFHOMjJuhJ+ozIKI5gRAi72AJ4imCmGCJXwEj2aOLTpmaYJCYoOuACeK8Bk
alx8UWZK7VQfpRDTMVv+5HM=WEeV
-----END PGP SIGNATURE-----


TUCoPS is optimized to look best in Firefox® on a widescreen monitor (1440x900 or better).
Site design & layout copyright © 1986-2014 AOH