GLSA 200406-01: Ethereal: Multiple security problems

http://security.gentoo.org/

Severity:	high
Title:	Ethereal: Multiple security problems
Date:	06/04/2004
Bugs:	#51022
ID:	200406-01

Synopsis

Multiple vulnerabilities including one buffer overflow exist in Ethereal, which may allow an attacker to run arbitrary code or crash the program.

Background

Ethereal is a feature rich network protocol analyzer.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-analyzer/ethereal	<= 0.10.3	>= 0.10.4	All supported architectures

Description

There are multiple vulnerabilities in versions of Ethereal earlier than 0.10.4, including:

A buffer overflow in the MMSE dissector.
Under specific conditions a SIP packet could make Ethereal crash.
The AIM dissector could throw an assertion, causing Ethereal to crash.
The SPNEGO dissector could dereference a null pointer, causing a crash.

Impact

An attacker could use these vulnerabilities to crash Ethereal or even execute arbitrary code with the permissions of the user running Ethereal, which could be the root user.

Workaround

For a temporary workaround you can disable all affected protocol dissectors by selecting Analyze->Enabled Protocols... and deselecting them from the list. However, it is strongly recommended to upgrade to the latest stable release.

Resolution

All Ethereal users should upgrade to the latest stable version:

    # emerge sync
    
    # emerge -pv ">=net-analyzer/ethereal-0.10.4"
    # emerge ">=net-analyzer/ethereal-0.10.4"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200406-01.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@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.