Home / mailings [gentoo-announce] [ GLSA 200906-02 ] Ruby: Denial of Service
Posted on 28 June 2009
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Gentoo Linux Security Advisory GLSA 200906-02
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http://security.gentoo.org/
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Severity: Normal
Title: Ruby: Denial of Service
Date: June 28, 2009
Bugs: #273213
ID: 200906-02
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Synopsis
========
A flaw in the Ruby standard library might allow remote attackers to
cause a Denial of Service attack.
Background
==========
Ruby is an interpreted object-oriented programming language. The
elaborate standard library includes the "BigDecimal" class.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-lang/ruby < 1.8.6_p369 >= 1.8.6_p369
Description
===========
Tadayoshi Funaba reported that BigDecimal in
ext/bigdecimal/bigdecimal.c does not properly handle string arguments
containing overly long numbers.
Impact
======
A remote attacker could exploit this issue to remotely cause a Denial
of Service attack.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Ruby users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/ruby-1.8.6_p369"
References
==========
[ 1 ] CVE-2009-1904
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1904
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200906-02.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2009 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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