Buffer overflow in the ospf_ls_upd_list_lsa function in ospf_packet.c in the OSPFv2 implementation in ospfd in Quagga before 0.99.20.1 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a Link State Update (aka LS Update) packet that is smaller than the length specified in its header.
lists.fedoraproject.org/pipermail/package-announce/2012-April/078794.html
lists.fedoraproject.org/pipermail/package-announce/2012-April/078910.html
lists.fedoraproject.org/pipermail/package-announce/2012-April/078926.html
rhn.redhat.com/errata/RHSA-2012-1258.html
rhn.redhat.com/errata/RHSA-2012-1259.html
secunia.com/advisories/48949
www.debian.org/security/2012/dsa-2459
www.kb.cert.org/vuls/id/551715
bugzilla.quagga.net/show_bug.cgi?id=705