[gentoo-announce] [ GLSA 201206-30 ] sendmail: X.509 NULL spoofing vulnerability

[news 28]

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Gentoo Linux Security Advisory GLSA 201206-30

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http://security.gentoo.org/

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Severity: Normal

Title: sendmail: X.509 NULL spoofing vulnerability

Date: June 25, 2012

Bugs: #299120

ID: 201206-30

 

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Synopsis

========

 

An error in the hostname matching in sendmail might enable remote

attackers to conduct man-in-the-middle attacks.

 

Background

==========

 

sendmail is a widely-used Mail Transport Agent (MTA).

 

Affected packages

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

 

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

Package / Vulnerable / Unaffected

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

1 mail-mta/sendmail < 8.14.4 >= 8.14.4

 

Description

===========

 

A vulnerability has been discovered in sendmail. Please review the CVE

identifier referenced below for details.

 

Impact

======

 

A remote attacker might employ a specially crafted certificate to

conduct man-in-the-middle attacks on SSL connections made using

sendmail.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All sendmail users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=mail-mta/sendmail-8.14.4"

 

References

==========

 

[ 1 ] CVE-2009-4565

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-4565

 

Availability

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

 

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

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-201206-30.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

https://bugs.gentoo.org.

 

License

=======

 

Copyright 2012 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