[Full-Disclosure] [ GLSA 200404-11 ] Multiple Vulnerabilities in pwlib

From: Aida Escriva-Sammer (aescriva_at_gentoo.org)
Date: 04/09/04

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    Date: Fri, 09 Apr 2004 09:06:48 -0400
    
    
    

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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
    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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