Test ID:	1.3.6.1.4.1.25623.1.0.72212
Category:	Ubuntu Local Security Checks
Title:	Ubuntu USN-1571-1 (isc-dhcp-client)
Summary:	NOSUMMARY
Description:	Description: The remote host is missing an update to isc-dhcp-client announced via advisory USN-1571-1. Details: Glen Eustace discovered that the DHCP server incorrectly handled IPv6 expiration times. A remote attacker could use this issue to cause DHCP to crash, resulting in a denial of service. This issue only affected Ubuntu 11.04, Ubuntu 11.10 and Ubuntu 12.04 LTS. (CVE-2012-3955) Dan Rosenberg discovered that the DHCP AppArmor profile could be escaped by using environment variables. This update mitigates the issue by sanitizing certain variables in the DHCP shell scripts. Solution: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 LTS: isc-dhcp-client 4.1.ESV-R4-0ubuntu5.5 isc-dhcp-server 4.1.ESV-R4-0ubuntu5.5 Ubuntu 11.10: isc-dhcp-client 4.1.1-P1-17ubuntu10.5 isc-dhcp-server 4.1.1-P1-17ubuntu10.5 Ubuntu 11.04: isc-dhcp-client 4.1.1-P1-15ubuntu9.6 isc-dhcp-server 4.1.1-P1-15ubuntu9.6 Ubuntu 10.04 LTS: dhcp3-client 3.1.3-2ubuntu3.4 dhcp3-server 3.1.3-2ubuntu3.4 http://www.securityspace.com/smysecure/catid.html?in=USN-1571-1 CVSS Score: 7.1 CVSS Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2012-3955 BugTraq ID: 55530 http://www.securityfocus.com/bid/55530 Debian Security Information: DSA-2551 (Google Search) http://www.debian.org/security/2012/dsa-2551 http://lists.fedoraproject.org/pipermail/package-announce/2012-September/086992.html http://lists.fedoraproject.org/pipermail/package-announce/2012-October/088882.html http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088220.html http://security.gentoo.org/glsa/glsa-201301-06.xml http://www.mandriva.com/security/advisories?name=MDVSA-2012:153 RedHat Security Advisories: RHSA-2013:0504 http://rhn.redhat.com/errata/RHSA-2013-0504.html http://www.securitytracker.com/id?1027528 http://secunia.com/advisories/51318 SuSE Security Announcement: openSUSE-SU-2012:1234 (Google Search) http://lists.opensuse.org/opensuse-updates/2012-09/msg00088.html SuSE Security Announcement: openSUSE-SU-2012:1252 (Google Search) http://lists.opensuse.org/opensuse-updates/2012-09/msg00103.html SuSE Security Announcement: openSUSE-SU-2012:1254 (Google Search) http://lists.opensuse.org/opensuse-updates/2012-09/msg00105.html http://www.ubuntu.com/usn/USN-1571-1
Copyright	Copyright (c) 2012 E-Soft Inc. http://www.securityspace.com

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