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Gentoo Linux Security Advisory 201403-02

Gentoo Linux Security Advisory 201403-02
Posted Mar 10, 2014
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201403-2 - A Vulnerability in LibYAML could result in execution of arbitrary code. Versions less than 0.1.5 are affected.

tags | advisory, arbitrary
systems | linux, gentoo
advisories | CVE-2013-6393
MD5 | d8b543ce46e352798c238ebb7aeb7aa0

Gentoo Linux Security Advisory 201403-02

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 201403-02
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http://security.gentoo.org/
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Severity: Normal
Title: LibYAML: Arbitrary code execution
Date: March 08, 2014
Bugs: #499920
ID: 201403-02

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Synopsis
========

A Vulnerability in LibYAML could result in execution of arbitrary code.

Background
==========

LibYAML is a YAML 1.1 parser and emitter written in C.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/libyaml < 0.1.5 >= 0.1.5

Description
===========

A heap-based buffer overflow flaw was found in the way libyaml parsed
YAML tags.

Impact
======

A remote attacker could provide a specially-crafted YAML document which
when parsed by LibYAML, would cause the application to crash or,
potentially, execute arbitrary code with the privileges the user who is
running the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All LibYAML users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libyaml-0.1.5"

References
==========

[ 1 ] CVE-2013-6393
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6393

Availability
============

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

http://security.gentoo.org/glsa/glsa-201403-02.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 2014 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

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