GLSA 200608-21: Heimdal: Multiple local privilege escalation vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	Heimdal: Multiple local privilege escalation vulnerabilities
Date:	08/23/2006
Bugs:	#143371
ID:	200608-21

Synopsis

Certain Heimdal components, ftpd and rcp, are vulnerable to a local privilege escalation.

Background

Heimdal is a free implementation of Kerberos 5.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-crypt/heimdal	< 0.7.2-r3	>= 0.7.2-r3	All supported architectures

Description

The ftpd and rcp applications provided by Heimdal fail to check the return value of calls to seteuid().

Impact

A local attacker could exploit this vulnerability to execute arbitrary code with elevated privileges.

Workaround

There is no known workaround at this time.

Resolution

All Heimdal users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-crypt/heimdal-0.7.2-r3"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200608-21.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.