Amazon Linux AMI : libxml2 Denial of Service (ALAS-2012-52)

This script is Copyright (C) 2013 Tenable Network Security, Inc.

Synopsis :

The remote Amazon Linux AMI host is missing a security update.

Description :

It was found that the hashing routine used by libxml2 arrays was
susceptible to predictable hash collisions. Sending a
specially-crafted message to an XML service could result in longer
processing time, which could lead to a denial of service. To mitigate
this issue, randomization has been added to the hashing function to
reduce the chance of an attacker successfully causing intentional

See also :

Solution :

Run 'yum update libxml2' to update your system.

Risk factor :

Medium / CVSS Base Score : 5.0

Family: Amazon Linux Local Security Checks

Nessus Plugin ID: 69659 ()

Bugtraq ID:

CVE ID: CVE-2012-0841