Ubuntu 11.04 / 11.10 / 12.04 LTS : isc-dhcp vulnerabilities (USN-1519-1)

Ubuntu Security Notice (C) 2012-2016 Canonical, Inc. / NASL script (C) 2012-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

Markus Hietava discovered that the DHCP server incorrectly handled
certain malformed client identifiers. A remote attacker could use this
issue to cause DHCP to crash, resulting in a denial of service.
(CVE-2012-3571)

Glen Eustace discovered that the DHCP server incorrectly handled
memory. A remote attacker could use this issue to cause DHCP to crash,
resulting in a denial of service. (CVE-2012-3954).

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.

Solution :

Update the affected isc-dhcp-server package.

Risk factor :

Medium / CVSS Base Score : 6.1
(CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 5.0
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 60137 ()

Bugtraq ID: 54665

CVE ID: CVE-2012-3571
CVE-2012-3954

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