| Name | CVE-2023-38802 |
| Description | FRRouting FRR 7.5.1 through 9.0 and Pica8 PICOS 4.3.3.2 allow a remote attacker to cause a denial of service via a crafted BGP update with a corrupted attribute 23 (Tunnel Encapsulation). |
| 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, DSA-5495-1 |
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) | 7.5.1-1.1+deb10u2 | fixed |
| bullseye (security), bullseye | 7.5.1-1.1+deb11u2 | fixed |
| bookworm, bookworm (security) | 8.4.4-1.1~deb12u1 | fixed |
| sid, trixie | 10.0-2 | 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 | | DSA-5495-1 | |
| frr | source | bookworm | 8.4.4-1.1~deb12u1 | | DSA-5495-1 | |
| frr | source | (unstable) | 8.4.4-1.1 | | | |
Notes
https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling
https://github.com/FRRouting/frr/pull/14290
https://github.com/FRRouting/frr/commit/bcb6b58d9530173df41d3a3cbc4c600ee0b4b186
Backport for stable/8.4: https://github.com/FRRouting/frr/pull/14295
https://github.com/FRRouting/frr/commit/46817adab03802355c3cce7b753c7a735bdcc5ae