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Test ID:1.3.6.1.4.1.25623.1.0.57074
Category:Ubuntu Local Security Checks
Title:Ubuntu USN-310-1 (ppp)
Summary:Ubuntu USN-310-1 (ppp)
Description:
The remote host is missing an update to ppp
announced via advisory USN-310-1.

A security issue affects the following Ubuntu releases:

Ubuntu 5.10
Ubuntu 6.06 LTS

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

Marcus Meissner discovered that the winbind plugin of pppd does not
check the result of the setuid() call. On systems that configure PAM
limits for the maximum number of user processes and enable the winbind
plugin, a local attacker could exploit this to execute the winbind
NTLM authentication helper as root. Depending on the local winbind
configuration, this could potentially lead to privilege escalation.

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

Ubuntu 5.10:
ppp 2.4.3-20050321+2ubuntu1.1
ppp-dev 2.4.3-20050321+2ubuntu1.1
ppp-udeb 2.4.3-20050321+2ubuntu1.1

Ubuntu 6.06 LTS:
ppp 2.4.4b1-1ubuntu3.1
ppp-dev 2.4.4b1-1ubuntu3.1
ppp-udeb 2.4.4b1-1ubuntu3.1

In general, a standard system upgrade is sufficient to effect the
necessary changes.

http://www.securityspace.com/smysecure/catid.html?in=USN-310-1

Risk factor : High
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2006-2194
Debian Security Information: DSA-1106 (Google Search)
http://www.debian.org/security/2006/dsa-1106
http://www.mandriva.com/security/advisories?name=MDKSA-2006:119
http://www.ubuntu.com/usn/usn-310-1
BugTraq ID: 18849
http://www.securityfocus.com/bid/18849
http://www.osvdb.org/26994
http://secunia.com/advisories/20963
http://secunia.com/advisories/20967
http://secunia.com/advisories/20996
http://secunia.com/advisories/20987
CopyrightCopyright (c) 2006 E-Soft Inc. http://www.securityspace.com

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