The kadm_ser_in function in (1) the Kerberos v4compatibility administration daemon (kadmind4) in the MIT Kerberos 5 (krb5) krb5-1.2.6 and earlier, (2) kadmind in KTH Kerberos 4 (eBones) before 1.2.1, and (3) kadmind in KTH Kerberos 5 (Heimdal) before 0.5.1 when compiled with Kerberos 4 support, does not properly verify the length field of a request, which allows remote attackers to execute arbitrary code via a buffer overflow attack.
http://www.securityfocus.com/bid/6024
http://www.redhat.com/support/errata/RHSA-2002-242.html
http://www.pdc.kth.se/heimdal/
http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-073.php
http://www.kb.cert.org/vuls/id/875073
http://www.iss.net/security_center/static/10430.php
http://www.debian.org/security/2002/dsa-185
http://www.debian.org/security/2002/dsa-184
http://www.debian.org/security/2002/dsa-183
http://www.cert.org/advisories/CA-2002-29.html
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2002-002-kadm4.txt
http://web.mit.edu/kerberos/www/advisories/2002-002-kadm4_attacksig.txt
http://marc.info/?l=bugtraq&m=103582805330339&w=2
http://marc.info/?l=bugtraq&m=103582517126392&w=2
http://marc.info/?l=bugtraq&m=103564944215101&w=2
http://marc.info/?l=bugtraq&m=103539530729206&w=2
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000534
http://archives.neohapsis.com/archives/bugtraq/2002-10/0399.html