bgpd in FRRouting FRR (aka Free Range Routing) 2.x and 3.x before 3.0.4, 4.x before 4.0.1, 5.x before 5.0.2, and 6.x before 6.0.2 (not affecting Cumulus Linux or VyOS), when ENABLE_BGP_VNC is used for Virtual Network Control, allows remote attackers to cause a denial of service (peering session flap) via attribute 255 in a BGP UPDATE packet. This occurred during Disco in January 2019 because FRR does not implement RFC 7606, and therefore the packets with 255 were considered invalid VNC data and the BGP session was closed.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2019-01-10T17:00:00
Updated: 2024-08-04T20:09:23.750Z
Reserved: 2019-01-10T00:00:00
Link: CVE-2019-5892
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2019-01-10T17:29:00.333
Modified: 2020-08-24T17:37:01.140
Link: CVE-2019-5892
Redhat
No data.