Amazon Linux AMI : libyaml Buffer Overflow Vulnerability (ALAS-2014-321)

This script is Copyright (C) 2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

Heap-based buffer overflow in the yaml_parser_scan_uri_escapes
function in LibYAML before 0.1.6 allows context-dependent attackers to
execute arbitrary code via a long sequence of percent-encoded
characters in a URI in a YAML file. (CVE-2014-2525)

See also :

http://www.nessus.org/u?bc26895c

Solution :

Run 'yum update libyaml' to update your system.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)

Family: Amazon Linux Local Security Checks

Nessus Plugin ID: 73649 ()

Bugtraq ID:

CVE ID: CVE-2014-2525