CVE-2019-5892

· N/AModified

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CVSS v3.1

N/A

EPSS

2.72%

Published

Jan 10, 2019

Modified

Nov 21, 2024

Public PoC / Exploit

All weaponized →

No public PoC or exploit code indexed for this CVE.

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

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.

Weaknesses (CWE)

CWE-436

Affected Products (5)

frrouting · frroutingvulnerable

frrouting · frrouting (up to 3.0.4)vulnerable

frrouting · frrouting (up to 5.0.2)vulnerable

frrouting · frrouting (up to 6.0.2)vulnerable

frrouting · frroutingvulnerable

References (14)

https://frrouting.org/community/security/cve-2019-5892.html

Vendor Advisory

https://github.com/FRRouting/frr/commit/943d595a018e69b550db08cccba1d0778a86705a