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

Ubuntu Security Notice (C) 2011-2016 Canonical, Inc. / NASL script (C) 2011-2016 Tenable Network Security, Inc.

Synopsis :

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

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.

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 login and / or passwd packages.

Risk factor :

Medium / CVSS Base Score : 6.4

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 51997 ()

Bugtraq ID:

CVE ID: CVE-2011-0721

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