CVE Database›Document archive›CVE-2023-38406

CVE-2023-38406

ffr: Flowspec overflow in bgpd/bgp_flowspec.c

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Severity

Moderate

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · February 24, 2023

Updated · November 21, 2025

Description

A flaw was found in bgpd/bgp_flowspec.c in the FFrouting BGP protocol code. An overflow may occur while processing zero length NLRI messages.

Statement

Red Hat OpenStack Platform does not ship its own version of the frr package, instead using the version from the underlying Red Hat Enterprise Linux. RHOSP is marked as Not Affected as no changes need to be made by the OpenStack engineering team. System administrators of OpenStack deployments should apply updates once available in RHEL.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer