Keiichi Mori discovered that the MIT krb5 KDC database propagation daemon is vulnerable to a denial of service attack due to improper logic when a worker child process exited because of invalid network input. This could only occur when kpropd is running in standalone mode; kpropd was not affected when running in incremental propagation mode or as an inetd server. This issue only affects Ubuntu 9.10, Ubuntu 10.04 LTS, and Ubuntu 10.10. Kevin Longfellow and others discovered that the MIT krb5 Key Distribution Center daemon is vulnerable to denial of service attacks when using an LDAP back end due to improper handling of network input