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Test ID:1.3.6.1.4.1.25623.1.0.60114
Category:Ubuntu Local Security Checks
Title:Ubuntu USN-562-1 (opal)
Summary:Ubuntu USN-562-1 (opal)
Description:
The remote host is missing an update to opal
announced via advisory USN-562-1.

A security issue affects the following Ubuntu releases:

Ubuntu 6.06 LTS
Ubuntu 6.10
Ubuntu 7.04

This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.

Jose Miguel Esparza discovered that certain SIP headers were not correctly
validated. A remote attacker could send a specially crafted packet to
an application linked against opal (e.g. Ekiga) causing it to crash, leading
to a denial of service.

Solution:
The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 6.06 LTS:
libopal-2.2.0 2.2.1-1ubuntu1.1

Ubuntu 6.10:
libopal-2.2.0 2.2.3.dfsg-0ubuntu2.1

Ubuntu 7.04:
libopal-2.2.0 2.2.3.dfsg-2ubuntu2.1

After a standard system upgrade you need to restart your session to effect
the necessary changes.

http://www.securityspace.com/smysecure/catid.html?in=USN-562-1

Risk factor : Medium
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2007-4924
Bugtraq: 20071011 S21SEC-037-en: OPAL SIP Protocol Remote Denial of Service (Google Search)
http://www.securityfocus.com/archive/1/archive/1/482120/30/4500/threaded
http://www.milw0rm.com/exploits/9240
http://mail.gnome.org/archives/ekiga-list/2007-September/msg00103.html
http://www.s21sec.com/avisos/s21sec-037-en.txt
http://www.mandriva.com/security/advisories?name=MDKSA-2007:205
http://www.redhat.com/support/errata/RHSA-2007-0957.html
SuSE Security Announcement: SUSE-SR:2007:021 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2007-10/msg00006.html
http://www.ubuntu.com/usn/usn-562-1
BugTraq ID: 25955
http://www.securityfocus.com/bid/25955
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:11398
http://www.vupen.com/english/advisories/2007/3413
http://www.vupen.com/english/advisories/2007/3414
http://osvdb.org/41637
http://www.securitytracker.com/id?1018776
http://secunia.com/advisories/27118
http://secunia.com/advisories/27128
http://secunia.com/advisories/27129
http://secunia.com/advisories/27271
http://secunia.com/advisories/27524
http://secunia.com/advisories/28380
CopyrightCopyright (c) 2008 E-Soft Inc. http://www.securityspace.com

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