GLSA-201403-02 : LibYAML: Arbitrary code execution

This script is Copyright (C) 2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-201403-02
(LibYAML: Arbitrary code execution)

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.

See also :

http://www.gentoo.org/security/en/glsa/glsa-201403-02.xml

Solution :

All LibYAML users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=dev-libs/libyaml-0.1.5'

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Gentoo Local Security Checks

Nessus Plugin ID: 72894 ()

Bugtraq ID: 65258

CVE ID: CVE-2013-6393