Oracle Linux 5 : ruby (ELSA-2013-0611)

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


Synopsis :

The remote Oracle Linux host is missing one or more security updates.

Description :

From Red Hat Security Advisory 2013:0611 :

Updated ruby packages that fix one security issue are now available
for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
moderate security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.

Ruby is an extensible, interpreted, object-oriented, scripting
language. It has features to process text files and to do system
management tasks.

It was discovered that Ruby's REXML library did not properly restrict
XML entity expansion. An attacker could use this flaw to cause a
denial of service by tricking a Ruby application using REXML to read
text nodes from specially-crafted XML content, which will result in
REXML consuming large amounts of system memory. (CVE-2013-1821)

All users of Ruby are advised to upgrade to these updated packages,
which contain backported patches to resolve this issue.

See also :

https://oss.oracle.com/pipermail/el-errata/2013-March/003342.html

Solution :

Update the affected ruby packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.3
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 68781 ()

Bugtraq ID: 58141

CVE ID: CVE-2013-1821