CVE-2023-38406

9.8 CRITICAL

Published: November 06, 2023 Modified: November 04, 2025

View on NVD

Description

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

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/FRRouting/frr/compare/frr-8.4.2...frr-8.4.3

Source: cve@mitre.org

Patch

https://github.com/FRRouting/frr/pull/12884

Source: cve@mitre.org

Issue Tracking Patch

https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html

Source: cve@mitre.org

https://github.com/FRRouting/frr/compare/frr-8.4.2...frr-8.4.3

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://github.com/FRRouting/frr/pull/12884

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking Patch

https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.debian.org/debian-lts-announce/2024/09/msg00007.html

Source: af854a3a-2127-422b-91ae-364da2661108

7 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.8 / 10.0

EPSS (Exploit Probability)

0.1%

32th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-755

Affected Vendors

frrouting

Related CVEs