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Heimdal: Buffer overflow vulnerabilities

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200506-24 / heimdal
Release Date June 29, 2005
Latest Revision June 29, 2005: 01
Impact high
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-crypt/heimdal < 0.6.5 >= 0.6.5 All supported architectures

Related bugreports: #96727

Synopsis

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

2.  Impact Information

Background

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

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.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All users should upgrade to the latest available version:

Code Listing 3.1: Resolution

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

4.  References



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Page updated June 29, 2005

Summary: This is a Gentoo Linux Security Advisory

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