Denial of Service Vulnerability in Quagga BGP Daemon (bgpd) Prior to Version 1.2.3

Denial of Service Vulnerability in Quagga BGP Daemon (bgpd) Prior to Version 1.2.3

CVE-2018-5381 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

The Quagga BGP daemon (bgpd) prior to version 1.2.3 has a bug in its parsing of "Capabilities" in BGP OPEN messages, in the bgp_packet.c:bgp_capability_msg_parse function. The parser can enter an infinite loop on invalid capabilities if a Multi-Protocol capability does not have a recognized AFI/SAFI, causing a denial of service.

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