GLSA 200710-04: libsndfile: Buffer overflow

Severity:normal
Title:libsndfile: Buffer overflow
Date:10/07/2007
Bugs: #192834
ID:200710-04

Synopsis

A buffer overflow vulnerability has been discovered in libsndfile.

Background

libsndfile is a library for reading and writing various formats of audio files including WAV and FLAC.

Affected packages

Package Vulnerable Unaffected Architecture(s)
media-libs/libsndfile < 1.0.17-r1 >= 1.0.17-r1 All supported architectures

Description

Robert Buchholz of the Gentoo Security team discovered that the flac_buffer_copy() function does not correctly handle FLAC streams with variable block sizes which leads to a heap-based buffer overflow (CVE-2007-4974).

Impact

A remote attacker could exploit this vulnerability by enticing a user to open a specially crafted FLAC file or network stream with an application using libsndfile. 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 libsndfile users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/libsndfile-1.0.17-r1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200710-04.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.

License

Copyright 2010 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.

Thank you!