Ubuntu 9.10 / 10.04 LTS / 10.10 : shadow vulnerability (USN-1065-1)

Ubuntu Security Notice (C) 2011-2013 Canonical, Inc. / NASL script (C) 2011-2013 Tenable Network Security, Inc.


Synopsis :

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

Description :

Kees Cook discovered that some shadow utilities did not correctly
validate user input. A local attacker could exploit this flaw to
inject newlines into the /etc/passwd file. If the system was
configured to use NIS, this could lead to existing NIS groups or users
gaining or losing access to the system, resulting in a denial of
service or unauthorized access.

Solution :

Update the affected login and / or passwd packages.

Risk factor :

Medium / CVSS Base Score : 6.4
(CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P)

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 51997 ()

Bugtraq ID:

CVE ID: CVE-2011-0721