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