Subject: [ GLSA 200906-02 ] Ruby: Denial of Service
From: Alex Legler <a3li@gentoo.org.>
To: gentoo-announce@gentoo.org
Cc: bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk,
security-alerts@linuxsecurity.com
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Date: Sun, 28 Jun 2009 23:35:18 +0200
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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
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A flaw in the Ruby standard library might allow remote attackers to
cause a Denial of Service attack.
Background
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Ruby is an interpreted object-oriented programming language. The
elaborate standard library includes the "BigDecimal" class.
Affected packages
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Package / Vulnerable / Unaffected
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1 dev-lang/ruby < 1.8.6_p369 >=3D 1.8.6_p369
Description
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Tadayoshi Funaba reported that BigDecimal in
ext/bigdecimal/bigdecimal.c does not properly handle string arguments
containing overly long numbers.
Impact
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A remote attacker could exploit this issue to remotely cause a Denial
of Service attack.
Workaround
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There is no known workaround at this time.
Resolution
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All Ruby users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Ddev-lang/ruby-1.8.6_p369"
References
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[ 1 ] CVE-2009-1904
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-1904
Availability
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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?
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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
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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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