Design/Logic Flaw

The bgpcapabilityorf function in bgpd in Quagga 0.99.20.1 and earlier allows remote attackers to cause a denial of service assertion failure and daemon exit by leveraging a BGP peering relationship and sending a malformed Outbound Route Filtering ORF capability TLV in an OPEN message...

CVE-2012-1820

Summary of CVE-2012-1820 : In Quagga, the bgpd daemon (versions up to 0.99.20.1 and earlier) incorrectly processes the BGP ORF capability in OPEN messages, allowing a remote attacker with a configured BGP peer to trigger an assertion failure and crash bgpd, causing a denial of service. The root c...

quagga -- BGP OPEN denial of service vulnerability

CERT reports: If a pre-configured BGP peer sends a specially-crafted OPEN message with a malformed ORF capability TLV, Quagga bgpd process will erroneously try to consume extra bytes from the input packet buffer. The process will detect a buffer overrun attempt before it happens and immediately...