Joined: 12 May 2004
|Posted: Thu Apr 28, 2005 3:35 pm Post subject: [ GLSA 200504-28 ] Heimdal: Buffer overflow vulnerabilities
|Gentoo Linux Security Advisory
Title: Heimdal: Buffer overflow vulnerabilities (GLSA 200504-28)
Date: April 28, 2005
Buffer overflow vulnerabilities have been found in the telnet client in Heimdal which could lead to execution of arbitrary code.
Heimdal is a free implementation of Kerberos 5 that includes a telnet client program.
Vulnerable: < 0.6.4
Unaffected: >= 0.6.4
Architectures: All supported architectures
Buffer overflow vulnerabilities in the slc_add_reply() and env_opt_add() functions have been discovered by Gael Delalleau in the telnet client in Heimdal.
Successful exploitation would require a vulnerable user to connect to an attacker-controlled host using the telnet client, potentially executing arbitrary code with the permissions of the user running the application.
There is no known workaround at this time.
All Heimdal users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=app-crypt/heimdal-0.6.4"
Last edited by GLSA on Sat Aug 23, 2008 4:18 am; edited 5 times in total