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Heimdal: Multiple local privilege escalation vulnerabilities


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200608-21 / Heimdal
Release Date August 23, 2006
Latest Revision August 23, 2006: 01
Impact high
Exploitable local
Package Vulnerable versions Unaffected versions Architecture(s)
app-crypt/heimdal < 0.7.2-r3 >= 0.7.2-r3 All supported architectures

Related bugreports: #143371


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

2.  Impact Information


Heimdal is a free implementation of Kerberos 5.


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


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

3.  Resolution Information


There is no known workaround at this time.


All Heimdal users should upgrade to the latest version:

Code Listing 3.1: Resolution

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

4.  References


Page updated August 23, 2006

Summary: This is a Gentoo Linux Security Advisory

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