[gentoo-announce] [ GLSA 200906-02 ] Ruby: Denial of Service

[news 28]

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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 ( -at -) 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