CVE-2019-5892

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Summary

CVECVE-2019-5892
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-01-10 17:29:00 UTC
Updated2020-08-24 17:37:00 UTC
Descriptionbgpd 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.

Risk And Classification

Problem Types: CWE-436

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Frrouting Frrouting All All All All
Application Frrouting Frrouting 4.0 All All All
Application Frrouting Frrouting All All All All
Application Frrouting Frrouting 4.0 All All All
Application Frrouting Frrouting All All All All

References

ReferenceSourceLinkTags
Release FRR 5.0.2 Release · FRRouting/frr · GitHub MISC github.com Release Notes, Third Party Advisory
FRRouting CONFIRM frrouting.org Vendor Advisory
Release FRR 3.0.4 Release · FRRouting/frr · GitHub MISC github.com Release Notes, Third Party Advisory
Release FRR 6.0.2 Release · FRRouting/frr · GitHub MISC github.com Release Notes, Third Party Advisory
bgpd: don't use BGP_ATTR_VNC(255) unless ENABLE_BGP_VNC_ATTR is defined · FRRouting/frr@943d595 · GitHub MISC github.com Patch, Third Party Advisory
Release FRR 4.0.1 · FRRouting/frr · GitHub MISC github.com Release Notes, Third Party Advisory
[FROG] New Releases of FRR MISC lists.frrouting.org Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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