Gentoo alert: Multiple Vulnerabilities in pwlib

Posted by dave on Apr 9, 2004 5:28 AM EDT
Mailing list; By Aida Escriva-Sammer <aescriva@gentoo.org>
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Multiple vulnerabilites have been found in pwlib that may lead to a remote denial of service or buffer overflow attack.

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Gentoo Linux Security Advisory                           GLSA 200404-11
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                                              http://security.gentoo.org
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Severity: High Title: Multiple Vulnerabilities in pwlib

Date: April 09, 2004 Bugs: #45846 ID: 200404-11

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Synopsis ========

Multiple vulnerabilites have been found in pwlib that may lead to a remote denial of service or buffer overflow attack.

Background ==========

pwlib is a multi-platform library designed for OpenH323.

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

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- dev-libs/pwlib <= 1.5.2-r2 >= 1.5.2-r3

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

Multiple vulnerabilities have been found in the implimentation of protocol H.323 contained in pwlib. Most of the vulnerabilies are in the parsing of ASN.1 elements which would allow an attacker to use a maliciously crafted ASN.1 element to cause unpredictable behavior in pwlib.

Impact ======

An attacker may cause a denial of service condition or cause a buffer overflow that would allow arbitrary code to be executed with root privileges.

Workaround ==========

Blocking ports 1719 and 1720 may reduce the likelihood of an attack. All users are advised to upgrade to the latest version of the affected package.

Resolution ==========

All pwlib users are advised to upgrade to version 1.5.2-r3 or later:

# emerge sync

# emerge -pv ">=dev-libs/pwlib-1.5.2-r3" # emerge ">=dev-libs/pwlib-1.5.2-r3"

References ==========

[ 1 ] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0097 [ 2 ] http://www.uniras.gov.uk/vuls/2004/006489/h323.htm

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

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

http://security.gentoo.org/glsa/glsa-200404-11.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 [e-mail:security@gentoo.org] or alternatively, you may file a bug at http://bugs.gentoo.org.

License =======

Copyright 2004 Gentoo Technologies, 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/1.0
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