GLSA-200907-03 : APR Utility Library: Multiple vulnerabilities

This script is Copyright (C) 2009-2014 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-200907-03
(APR Utility Library: Multiple vulnerabilities)

Multiple vulnerabilities have been discovered in the APR Utility
Library:
Matthew Palmer reported a heap-based buffer
underflow while compiling search patterns in the
apr_strmatch_precompile() function in strmatch/apr_strmatch.c
(CVE-2009-0023).
kcope reported that the expat XML parser in
xml/apr_xml.c does not limit the amount of XML entities expanded
recursively (CVE-2009-1955).
C. Michael Pilato reported an
off-by-one error in the apr_brigade_vprintf() function in
buckets/apr_brigade.c (CVE-2009-1956).

Impact :

A remote attacker could exploit these vulnerabilities to cause a Denial
of Service (crash or memory exhaustion) via an Apache HTTP server
running mod_dav or mod_dav_svn, or using several configuration files.
Additionally, a remote attacker could disclose sensitive information or
cause a Denial of Service by sending a specially crafted input. NOTE:
Only big-endian architectures such as PPC and HPPA are affected by the
latter flaw.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200907-03.xml

Solution :

All Apache Portable Runtime Utility Library users should upgrade to the
latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=dev-libs/apr-util-1.3.7'

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 5.8
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Gentoo Local Security Checks

Nessus Plugin ID: 39614 (gentoo_GLSA-200907-03.nasl)

Bugtraq ID: 35221
35251
35253

CVE ID: CVE-2009-0023
CVE-2009-1955
CVE-2009-1956