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.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11048
https://exchange.xforce.ibmcloud.com/vulnerabilities/33547
http://www.vupen.com/english/advisories/2008/1195/references
http://www.vupen.com/english/advisories/2007/1336
http://www.ubuntu.com/usn/usn-461-1
http://www.trustix.org/errata/2007/0017/
http://www.securitytracker.com/id?1018142
http://www.securityfocus.com/bid/23417
http://www.redhat.com/support/errata/RHSA-2007-0389.html
http://www.quagga.net/news2.php?y=2007&m=4&d=8#id1176073740
http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.015.html
http://www.novell.com/linux/security/advisories/2007_9_sr.html
http://www.mandriva.com/security/advisories?name=MDKSA-2007:096
http://www.debian.org/security/2007/dsa-1293
http://sunsolve.sun.com/search/document.do?assetkey=1-26-236141-1
http://security.gentoo.org/glsa/glsa-200705-05.xml
http://secunia.com/advisories/29743
http://secunia.com/advisories/25428
http://secunia.com/advisories/25312
http://secunia.com/advisories/25293
http://secunia.com/advisories/25255
http://secunia.com/advisories/25119
http://secunia.com/advisories/25084
http://secunia.com/advisories/24808