CVE-2023-38406 : bgpd/bgp_flowspec.c in FRRouting (FRR) before 8.4.3 mishandles an nlri length of

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

Published 2023-11-06 06:15:41

Updated 2024-04-28 07:15:08

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2023-38406

Frrouting » Frrouting
Versions before (<) 8.4.3
cpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.12%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 33 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-755 Improper Handling of Exceptional Conditions

The product does not handle or incorrectly handles an exceptional condition.

Assigned by: nvd@nist.gov (Primary)

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

Comparing frr-8.4.2...frr-8.4.3 · FRRouting/frr · GitHub
Patch
https://github.com/FRRouting/frr/pull/12884

bgpd: Flowspec overflow issue by donaldsharp · Pull Request #12884 · FRRouting/frr · GitHub
Issue Tracking;Patch
https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html

[SECURITY] [DLA 3797-1] frr security update

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