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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
trusty Ignored
(end of standard support)
xenial Ignored
(end of standard support)
bionic Ignored
(end of standard support)
focal Needs triage

jammy
Released (8.1-1ubuntu1.8)
lunar
Released (8.4.2-1ubuntu1.6)
mantic Not vulnerable
(8.4.4-1.1ubuntu1)
upstream
Released (8.4.4-1)
Patches:
upstream: https://github.com/FRRouting/frr/pull/12884
upstream: https://github.com/FRRouting/frr/pull/12892 (backport for stable/8.4)
upstream: https://github.com/FRRouting/frr/commit/8a4e6637fc0621e90daa4decb4ee887a0af8ee24 (frr-8.4.3)
quagga
Launchpad, Ubuntu, Debian
trusty Ignored
(end of standard support)
bionic Not vulnerable
(code not present)
jammy Does not exist

lunar Does not exist

mantic Does not exist

upstream Needs triage

focal Not vulnerable
(code not present)
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