GLSA-201207-06 : JRuby: Denial of Service

This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-201207-06
(JRuby: Denial of Service)

JRuby does not properly randomize hash functions to protect against hash
collision attacks.

Impact :

A remote attacker could send a specially crafted input, possibly
resulting in a Denial of Service condition.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-201207-06.xml

Solution :

All JRuby users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=dev-java/jruby-1.6.5.1'

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.4
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Gentoo Local Security Checks

Nessus Plugin ID: 59898 ()

Bugtraq ID: 51233

CVE ID: CVE-2011-4838