Amazon Linux AMI : rubygems (ALAS-2013-230)

This script is Copyright (C) 2013-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

Algorithmic complexity vulnerability in Gem::Version::VERSION_PATTERN
in lib/rubygems/version.rb in RubyGems before 1.8.23.1, 1.8.24 through
1.8.25, 2.0.x before 2.0.8, and 2.1.x before 2.1.0, as used in Ruby
1.9.0 through 2.0.0p247, allows remote attackers to cause a denial of
service (CPU consumption) via a crafted gem version that triggers a
large amount of backtracking in a regular expression.

See also :

http://www.nessus.org/u?9f7b4a60

Solution :

Run 'yum update rubygems' to update your system.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P)

Family: Amazon Linux Local Security Checks

Nessus Plugin ID: 70234 ()

Bugtraq ID:

CVE ID: CVE-2013-4287