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Test ID:1.3.6.1.4.1.25623.1.0.55554
Category:Ubuntu Local Security Checks
Title:Ubuntu USN-195-1 (ruby1.8)
Summary:Ubuntu USN-195-1 (ruby1.8)
Description:
The remote host is missing an update to ruby1.8
announced via advisory USN-195-1.

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)
Ubuntu 5.04 (Hoary Hedgehog)

The following packages are affected: ruby1.8

The object oriented scripting language Ruby supports safely executing
untrusted code with two mechanisms: safe level and taint flag on
objects. Dr. Yutaka Oiwa discovered a vulnerability that allows
Ruby methods to bypass these mechanisms. In systems which use this
feature, this could be exploited to execute Ruby code beyond the
restrictions specified in each safe level.

Solution:
The problem can be corrected by upgrading the affected package to
version 1.8.1+1.8.2pre2-3ubuntu0.3 (for Ubuntu 4.10), or
1.8.1+1.8.2pre4-1ubuntu0.2 (for Ubuntu 5.04). In general, a standard
system upgrade is sufficient to effect the necessary changes.
However, if you have permanently running server applications which are
implemented in Ruby and use safe levels, you need to restart them.
http://www.securityspace.com/smysecure/catid.html?in=USN-195-1

Risk factor : High
Cross-Ref: BugTraq ID: 17951
BugTraq ID: 14909
Common Vulnerability Exposure (CVE) ID: CVE-2005-2337
http://lists.apple.com/archives/security-announce/2006/May/msg00003.html
Debian Security Information: DSA-860 (Google Search)
http://www.debian.org/security/2005/dsa-860
Debian Security Information: DSA-862 (Google Search)
http://www.debian.org/security/2005/dsa-862
Debian Security Information: DSA-864 (Google Search)
http://www.debian.org/security/2005/dsa-864
http://www.gentoo.org/security/en/glsa/glsa-200510-05.xml
http://www.mandriva.com/security/advisories?name=MDKSA-2005:191
http://www.redhat.com/support/errata/RHSA-2005-799.html
SuSE Security Announcement: SUSE-SR:2006:005 (Google Search)
http://www.novell.com/linux/security/advisories/2006_05_sr.html
http://www.ubuntu.com/usn/usn-195-1
Cert/CC Advisory: TA06-132A
http://www.us-cert.gov/cas/techalerts/TA06-132A.html
CERT/CC vulnerability note: VU#160012
http://www.kb.cert.org/vuls/id/160012
http://jvn.jp/jp/JVN%2362914675/index.html
http://www.securityfocus.com/bid/14909
http://www.securityfocus.com/bid/17951
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10564
http://www.vupen.com/english/advisories/2006/1779
http://www.securitytracker.com/alerts/2005/Sep/1014948.html
http://secunia.com/advisories/16904
http://secunia.com/advisories/17094
http://secunia.com/advisories/17129
http://secunia.com/advisories/17147
http://secunia.com/advisories/17285
http://secunia.com/advisories/19130
http://secunia.com/advisories/17098
http://secunia.com/advisories/20077
http://securityreason.com/securityalert/59
XForce ISS Database: ruby-eval-security-bypass(22360)
http://xforce.iss.net/xforce/xfdb/22360
CopyrightCopyright (c) 2005 E-Soft Inc. http://www.securityspace.com

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