Ubuntu 6.06 LTS / 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : dhcp3 vulnerability (USN-1108-1)

High Nessus Plugin ID 53372


The remote Ubuntu host is missing one or more security-related patches.


Sebastian Krahmer discovered that the dhclient utility incorrectly filtered crafted responses. An attacker could use this flaw with a malicious DHCP server to execute arbitrary code, resulting in root privilege escalation.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected packages.

Plugin Details

Severity: High

ID: 53372

File Name: ubuntu_USN-1108-1.nasl

Version: $Revision: 1.8 $

Type: local

Agent: unix

Published: 2011/04/12

Modified: 2016/05/27

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:dhcp-client, p-cpe:/a:canonical:ubuntu_linux:dhcp3-client, p-cpe:/a:canonical:ubuntu_linux:dhcp3-common, p-cpe:/a:canonical:ubuntu_linux:dhcp3-dev, p-cpe:/a:canonical:ubuntu_linux:dhcp3-relay, p-cpe:/a:canonical:ubuntu_linux:dhcp3-server, p-cpe:/a:canonical:ubuntu_linux:dhcp3-server-ldap, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:10.10, cpe:/o:canonical:ubuntu_linux:6.06:-:lts, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, cpe:/o:canonical:ubuntu_linux:9.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2011/04/11

Exploitable With


Reference Information

CVE: CVE-2011-0997

BID: 47176

USN: 1108-1