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CVE-2023-38406

Published: 6 November 2023

bgpd/bgp_flowspec.c in FRRouting (FRR) before 8.4.3 mishandles an nlri length of zero, aka a "flowspec overflow."

Notes

AuthorNote
sbeattie
the quagga project was renamed to frr

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
frr
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support)
focal
Released (7.2.1-1ubuntu0.2+esm2)
Available with Ubuntu Pro
jammy
Released (8.1-1ubuntu1.8)
lunar
Released (8.4.2-1ubuntu1.6)
mantic Not vulnerable
(8.4.4-1.1ubuntu1)
noble Not vulnerable
(8.4.4-1.1ubuntu1)
trusty Ignored
(end of standard support)
upstream
Released (8.4.4-1)
xenial Ignored
(end of standard support)
Patches:
upstream: https://github.com/FRRouting/frr/pull/12884
upstream: https://github.com/FRRouting/frr/pull/12892
upstream: https://github.com/FRRouting/frr/commit/8a4e6637fc0621e90daa4decb4ee887a0af8ee24
quagga
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
jammy Does not exist

lunar Does not exist

mantic Does not exist

noble Does not exist

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Not vulnerable
(code not present)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H