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.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
Link | Tags |
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http://rhn.redhat.com/errata/RHSA-2012-1259.html | vendor advisory |
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/078910.html | vendor advisory |
http://www.debian.org/security/2012/dsa-2459 | vendor advisory |
http://www.kb.cert.org/vuls/id/551715 | patch third party advisory us government resource |
https://bugzilla.quagga.net/show_bug.cgi?id=705 | patch exploit |
http://secunia.com/advisories/48949 | third party advisory |
http://rhn.redhat.com/errata/RHSA-2012-1258.html | vendor advisory |
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/078926.html | vendor advisory |
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/078794.html | vendor advisory |