GLSA 200506-24: Heimdal: Buffer overflow vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	Heimdal: Buffer overflow vulnerabilities
Date:	06/29/2005
Bugs:	#96727
ID:	200506-24

Synopsis

Multiple buffer overflow vulnerabilities in Heimdal's telnetd server could allow the execution of arbitrary code.

Background

Heimdal is a free implementation of Kerberos 5 that includes a telnetd server.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-crypt/heimdal	< 0.6.5	>= 0.6.5	All supported architectures

Description

It has been reported that the "getterminaltype" function of Heimdal's telnetd server is vulnerable to buffer overflows.

Impact

An attacker could exploit this vulnerability to execute arbitrary code with the permission of the telnetd server program.

Workaround

There is no known workaround at this time.

Resolution

All users should upgrade to the latest available version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-crypt/heimdal-0.6.5"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200506-24.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.