| 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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3573-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| frr (PTS) | buster, buster (lts) | 7.5.1-1.1+deb10u3 | fixed |
| buster (security) | 7.5.1-1.1+deb10u2 | fixed |
| bullseye | 7.5.1-1.1+deb11u2 | fixed |
| bullseye (security) | 7.5.1-1.1+deb11u3 | fixed |
| bookworm (security), bookworm | 8.4.4-1.1~deb12u1 | fixed |
| trixie | 10.1.1-0.1 | fixed |
| sid | 10.2-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| frr | source | buster | 7.5.1-1.1+deb10u1 | | DLA-3573-1 | |
| frr | source | bullseye | 7.5.1-1.1+deb11u2 | | | |
| frr | source | (unstable) | 8.4.1-1 | | | |
Notes
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