The bgp_capability_orf 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.
CVSS Severity (version 2.0):
Impact Subscore: 2.9
Exploitability Subscore: 5.5
CVSS Version 2 Metrics:
Access Vector: Local network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows disruption of service
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US-CERT Vulnerability Note: