Amazon Linux AMI : gnupg2 Remote Attack Vulnerability (ALAS-2013-237)

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


Synopsis :

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

Description :

GnuPG: infinite recursion in the compressed packet parser DoS
(CVE-2013-4402)

GnuPG 1.4.x, 2.0.x, and 2.1.x treats a key flags subpacket with all
bits cleared (no usage permitted) as if it has all bits set (all usage
permitted), which might allow remote attackers to bypass intended
cryptographic protection mechanisms by leveraging the subkey.
(CVE-2013-4351)

See also :

http://www.nessus.org/u?cc8d3e0f

Solution :

Run 'yum update gnupg2' to update your system.

Risk factor :

Medium / CVSS Base Score : 5.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N)

Family: Amazon Linux Local Security Checks

Nessus Plugin ID: 70899 ()

Bugtraq ID:

CVE ID: CVE-2013-4351
CVE-2013-4402