Kernel logging daemon (klogd) in Linux does not properly cleanse user-injected format strings, which allows local users to gain root privileges by triggering malformed kernel messages.
https://exchange.xforce.ibmcloud.com/vulnerabilities/5259
http://www.turbolinux.com/pipermail/tl-security-announce/2000-September/000023.html
http://www.redhat.com/support/errata/RHSA-2000-061.html
http://www.novell.com/linux/security/advisories/adv9_draht_syslogd_txt.html
http://marc.info/?l=bugtraq&m=97726239017741&w=2
http://frontal2.mandriva.com/security/advisories?name=MDKSA-2000:050
http://archives.neohapsis.com/archives/bugtraq/2000-09/0193.html