Description

The process_chpw_request function in schpw.c in the password-changing functionality in kadmind in MIT Kerberos 5 (aka krb5) 1.7 through 1.9 frees an invalid pointer, which allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a crafted request that triggers an error condition.

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621726

http://krbdev.mit.edu/rt/Ticket/Display.html?id=6899

http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058181.html

http://osvdb.org/71789

http://secunia.com/advisories/44125

http://secunia.com/advisories/44181

http://secunia.com/advisories/44196

http://securityreason.com/securityalert/8200

http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-004.txt

http://www.mandriva.com/security/advisories?name=MDVSA-2011:077

http://www.redhat.com/support/errata/RHSA-2011-0447.html

http://www.securityfocus.com/archive/1/517484/100/0/threaded

http://www.securityfocus.com/bid/47310

http://www.securitytracker.com/id?1025320

http://www.vupen.com/english/advisories/2011/0936

http://www.vupen.com/english/advisories/2011/0986

http://www.vupen.com/english/advisories/2011/0997

https://hermes.opensuse.org/messages/8086843

Details

Risk Information

CVSS v2