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Gentoo Linux Security Advisory GLSA 201201-18

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                                        http://security.gentoo.org/

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Severity: High
Title: bip: Multiple vulnerabilities
Date: January 30, 2012
Bugs: #336321, #400599
ID: 201201-18

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Synopsis

Multiple vulnerabilities in bip might allow remote unauthenticated
attackers to cause a Denial of Service or possibly execute arbitrary
code.

Background

bip is a multi-user IRC proxy with SSL support.

Affected packages

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 Package              /     Vulnerable     /            Unaffected
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1 net-irc/bip < 0.8.8-r1 >= 0.8.8-r1

Description

Multiple vulnerabilities have been discovered in bip:

• Uli Schlachter reported that bip does not properly handle invalid
  data during authentication, resulting in a daemon crash
  (CVE-2010-3071).
• Julien Tinnes reported that bip does not check the number of open
  file descriptors against FD_SETSIZE, resulting in a stack buffer
  overflow (CVE-2012-0806).

Impact

A remote attacker could exploit these vulnerabilities to execute
arbitrary code with the privileges of the user running the bip daemon,
or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All bip users should upgrade to the latest version:

emerge --sync

emerge --ask --oneshot --verbose ">=net-irc/bip-0.8.8-r1"

NOTE: The CVE-2010-3071 flaw was already corrected in an earlier
version of bip and is included in this advisory for completeness.

References

[ 1 ] CVE-2010-3071
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-3071
[ 2 ] CVE-2012-0806
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0806

Availability

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201201-18.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
[email protected] 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