CVE-2022-36440

Name	CVE-2022-36440
Description	A reachable assertion was found in Frrouting frr-bgpd 8.3.0 in the peek_for_as4_capability function. Attackers can maliciously construct BGP open packets and send them to BGP peers running frr-bgpd, resulting in DoS.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
frr (PTS)	buster	6.0.2-2+deb10u1	vulnerable
	buster (security)	6.0.2-2+deb10u2	vulnerable
	bullseye (security), bullseye	7.5.1-1.1+deb11u1	vulnerable
	bookworm, sid	8.4.2-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
frr	source	(unstable)	8.4.1-1

Notes

[buster] - frr <no-dsa> (Minor issue)
https://github.com/FRRouting/frr/issues/13202
https://github.com/FRRouting/frrcommit/3e46b43e3788f0f87bae56a86b54d412b4710286 (base_8.4)
https://github.com/spwpun/pocs/blob/main/frr-bgpd.md