[gentoo-announce] [ GLSA 200903-26 ] TMSNC: Execution of arbitrary code

[news 28]

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Gentoo Linux Security Advisory GLSA 200903-26

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http://security.gentoo.org/

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Severity: Normal

Title: TMSNC: Execution of arbitrary code

Date: March 12, 2009

Bugs: #229157

ID: 200903-26

 

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Synopsis

========

 

A buffer overflow in TMSNC might lead to the execution of arbitrary

code when processing an instant message.

 

Background

==========

 

TMSNC is a Textbased client for the MSN instant messaging protocol.

 

Affected packages

=================

 

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 net-im/tmsnc <= 0.3.2-r1 Vulnerable!

-------------------------------------------------------------------

NOTE: Certain packages are still vulnerable. Users should migrate

to another package if one is available or wait for the

existing packages to be marked stable by their

architecture maintainers.

 

Description

===========

 

Nico Golde reported a stack-based buffer overflow when processing a MSN

packet with a UBX command containing a large UBX payload length field.

 

Impact

======

 

A remote attacker could send a specially crafted message, possibly

resulting in the execution of arbitrary code.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

Since TMSNC is no longer maintained, we recommend that users unmerge

the vulnerable package and switch to another console-based MSN client

such as CenterIM or Pebrot:

 

# emerge --unmerge "net-im/tmsnc"

 

References

==========

 

[ 1 ] CVE-2008-2828

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2828

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200903-26.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