[gentoo-announce] [ GLSA 200805-05 ] Wireshark: Denial of Service

[news 28]

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Gentoo Linux Security Advisory GLSA 200805-05

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http://security.gentoo.org/

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Severity: Normal

Title: Wireshark: Denial of Service

Date: May 07, 2008

Bugs: #215276

ID: 200805-05

 

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Synopsis

========

 

Multiple Denial of Service vulnerabilities have been discovered in

Wireshark.

 

Background

==========

 

Wireshark is a network protocol analyzer with a graphical front-end.

 

Affected packages

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

 

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

Package / Vulnerable / Unaffected

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

1 net-analyzer/wireshark < 1.0.0 >= 1.0.0

 

Description

===========

 

Errors exist in:

 

* the X.509sat dissector because of an uninitialized variable and the

Roofnet dissector because a NULL pointer may be passed to the

g_vsnprintf() function (CVE-2008-1561).

 

* the LDAP dissector because a NULL pointer may be passed to the

ep_strdup_printf() function (CVE-2008-1562).

 

* the SCCP dissector because it does not reset a pointer once the

packet has been processed (CVE-2008-1563).

 

Impact

======

 

A remote attacker could exploit these vulnerabilities by sending a

malformed packet or enticing a user to read a malformed packet trace

file, causing a Denial of Service.

 

Workaround

==========

 

Disable the X.509sat, Roofnet, LDAP, and SCCP dissectors.

 

Resolution

==========

 

All Wireshark users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=net-analyzer/wireshark-1.0.0"

 

References

==========

 

[ 1 ] CVE-2008-1561

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1561

[ 2 ] CVE-2008-1562

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1562

[ 3 ] CVE-2008-1563

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1563

 

Availability

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

 

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

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200805-05.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 2008 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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