krb5 -- UDP ping-pong vulnerability in the kpasswd (password changing) service. [CVE-2002-2443]

2013-05-10T00:00:00
ID E3F64457-CCCD-11E2-AF76-206A8A720317
Type freebsd
Reporter FreeBSD
Modified 2013-05-10T00:00:00

Description

No advisory has been released yet.

schpw.c in the kpasswd service in kadmind in MIT Kerberos 5 (aka krb5) before 1.11.3 does not properly validate UDP packets before sending responses, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged packet that triggers a communication loop, as demonstrated by krb_pingpong.nasl, a related issue to CVE-1999-0103. [CVE-2002-2443].