Buffer overflow in BibTeX 0.99 allows context-dependent attackers to cause a denial of service (memory corruption and crash) via a long .bib bibliography file.
https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00507.html
https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00505.html
https://bugzilla.redhat.com/show_bug.cgi?id=492136
http://www.ubuntu.com/usn/USN-937-1
http://www.openwall.com/lists/oss-security/2009/04/01/8