Debian DLA-263-1 : ruby1.9.1 security update

High Nessus Plugin ID 84494

Synopsis

The remote Debian host is missing a security update.

Description

Two vulnerabilities were identified in the Ruby language interpreter, version 1.9.1.

CVE-2012-5371

Jean-Philippe Aumasson identified that Ruby computed hash values without properly restricting the ability to trigger hash collisions predictably, allowing context-dependent attackers to cause a denial of service (CPU consumption). This is a different vulnerability than CVE-2011-4815.

CVE-2013-0269

Thomas Hollstegge and Ben Murphy found that the JSON gem for Ruby allowed remote attackers to cause a denial of service (resource consumption) or bypass the mass assignment protection mechanism via a crafted JSON document that triggers the creation of arbitrary Ruby symbols or certain internal objects.

For the squeeze distribution, theses vulnerabilities have been fixed in version 1.9.2.0-2+deb6u5 of ruby1.9.1. We recommend that you upgrade your ruby1.9.1 package.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2015/07/msg00000.html

https://packages.debian.org/source/squeeze-lts/ruby1.9.1

Plugin Details

Severity: High

ID: 84494

File Name: debian_DLA-263.nasl

Version: 2.4

Type: local

Agent: unix

Published: 2015/07/02

Updated: 2018/07/06

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libruby1.9.1, p-cpe:/a:debian:debian_linux:libruby1.9.1-dbg, p-cpe:/a:debian:debian_linux:libtcltk-ruby1.9.1, p-cpe:/a:debian:debian_linux:ri1.9.1, p-cpe:/a:debian:debian_linux:ruby1.9.1, p-cpe:/a:debian:debian_linux:ruby1.9.1-dev, p-cpe:/a:debian:debian_linux:ruby1.9.1-elisp, p-cpe:/a:debian:debian_linux:ruby1.9.1-examples, p-cpe:/a:debian:debian_linux:ruby1.9.1-full, cpe:/o:debian:debian_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/07/01

Reference Information

CVE: CVE-2012-5371, CVE-2013-0269

BID: 56484, 57899