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Test ID:1.3.6.1.4.1.25623.1.0.59221
Category:Ubuntu Local Security Checks
Title:Ubuntu USN-531-1 (dhcp)
Summary:Ubuntu USN-531-1 (dhcp)
Description:
The remote host is missing an update to dhcp
announced via advisory USN-531-1.

A security issue affects the following Ubuntu releases:

Ubuntu 6.06 LTS
Ubuntu 6.10
Ubuntu 7.04
Ubuntu 7.10

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

Details follow:

Nahuel Riva and Gerardo Richarte discovered that the DHCP server did not
correctly handle certain client options. A remote attacker could send
malicious DHCP replies to the server and execute arbitrary code.

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

Ubuntu 6.06 LTS:
dhcp 2.0pl5-19.4ubuntu0.1

Ubuntu 6.10:
dhcp 2.0pl5-19.4ubuntu1.1

Ubuntu 7.04:
dhcp 2.0pl5-19.5ubuntu2.1

Ubuntu 7.10:
dhcp 2.0pl5dfsg1-20ubuntu1.1

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

http://www.securityspace.com/smysecure/catid.html?in=USN-531-1

Risk factor : High
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2007-5365
Bugtraq: 20071011 CORE-2007-0928: Stack-based buffer overflow vulnerability in OpenBSDâ??s DHCP server (Google Search)
http://www.securityfocus.com/archive/1/archive/1/482085/100/100/threaded
Bugtraq: 20071102 DoS Exploit for DHCPd bug (Bugtraq ID 25984 ; CVE-2007-5365) (Google Search)
http://www.securityfocus.com/archive/1/archive/1/483230/100/100/threaded
http://www.milw0rm.com/exploits/4601
http://www.coresecurity.com/index.php5?module=ContentMod&action=item&id=1962
Debian Security Information: DSA-1388 (Google Search)
http://www.debian.org/security/2007/dsa-1388
OpenBSD Security Advisory: [4.0] 20071008 016: SECURITY FIX: October 8, 2007
http://www.openbsd.org/errata40.html#016_dhcpd
OpenBSD Security Advisory: [4.1] 20071008 010: SECURITY FIX: October 8, 2007
http://www.openbsd.org/errata41.html#010_dhcpd
OpenBSD Security Advisory: [4.2] 20071008 001: SECURITY FIX: October 8, 2007
http://www.openbsd.org/errata42.html#001_dhcpd
http://www.redhat.com/support/errata/RHSA-2007-0970.html
http://sunsolve.sun.com/search/document.do?assetkey=1-26-243806-1
http://www.ubuntu.com/usn/usn-531-1
http://www.ubuntu.com/usn/usn-531-2
BugTraq ID: 25984
http://www.securityfocus.com/bid/25984
BugTraq ID: 32213
http://www.securityfocus.com/bid/32213
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:5817
http://www.vupen.com/english/advisories/2008/3088
http://www.securitytracker.com/id?1018794
http://securitytracker.com/id?1021157
http://secunia.com/advisories/27160
http://secunia.com/advisories/27273
http://secunia.com/advisories/27350
http://secunia.com/advisories/27338
http://secunia.com/advisories/32668
XForce ISS Database: openbsd-dhcp-bo(37045)
http://xforce.iss.net/xforce/xfdb/37045
CopyrightCopyright (c) 2007 E-Soft Inc. http://www.securityspace.com

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