bgpd/bgp_attr.c in Quagga 0.98.6 and earlier, and 0.99.6 and earlier 0.99 versions, does not validate length values in the MP_REACH_NLRI and MP_UNREACH_NLRI attributes, which allows remote attackers to cause a denial of service (daemon crash or exit) via crafted UPDATE messages that trigger an assertion error or out of bounds read.
openSUSE 10.2 openSUSE Tumbleweed SUSE Linux Enterprise Server 11 SP1 SUSE Linux Enterprise Server 11 SP2 SUSE Linux Enterprise Server 11 SP3 SUSE Linux Enterprise Server 11 SP4 SUSE Linux Enterprise Software Development Kit 11 SP4