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Vulnerabilities / CVE-2023-38406

critical

CVE-2023-38406

ffr: Flowspec overflow in bgpd/bgp_flowspec.c

Published Modified CWE 755
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (medium), AlmaLinux (medium), Oracle (medium), Rocky Linux (medium), Ubuntu (medium).

Description

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

Affected packages and fixed versions

SourcePackageFixed in
alma 8frr, frr-selinux7.5.1-13.el8_9.3.alma.1
alma 9frr, frr-selinux8.3.1-11.el9_3.2.alma.1
debian 10frr7.5.1-1.1+deb10u2
debian 11frr7.5.1-1.1+deb11u3
debian 12frr8.4.4-1.1~deb12u1
debian 13frr8.4.4-1
debian 14frr8.4.4-1
echofrr8.4.4-1.1~deb12u1
Oracle Linux 8frr, frr-selinux7.5.1-13.el8_9.3
Oracle Linux 9frr, frr-selinux8.3.1-11.el9_3.2
rapidfort Oracle Linux 9frr, frr-selinux0:8.3.1-11.el9_3.2
rapidfort ubuntu 20.04frr, rf-frr0:8.1-1ubuntu1.8
Show all 27 entries from 18 sources
SourcePackageFixed in
alma 8frr7.5.1-13.el8_9.3.alma.1
alma 8frr-selinux7.5.1-13.el8_9.3.alma.1
alma 9frr8.3.1-11.el9_3.2.alma.1
alma 9frr-selinux8.3.1-11.el9_3.2.alma.1
debian 10frr7.5.1-1.1+deb10u2
debian 11frr7.5.1-1.1+deb11u3
debian 12frr8.4.4-1.1~deb12u1
debian 13frr8.4.4-1
debian 14frr8.4.4-1
echofrr8.4.4-1.1~deb12u1
Oracle Linux 8frr7.5.1-13.el8_9.3
Oracle Linux 8frr-selinux7.5.1-13.el8_9.3
Oracle Linux 9frr8.3.1-11.el9_3.2
Oracle Linux 9frr-selinux8.3.1-11.el9_3.2
rapidfort Oracle Linux 9frr0:8.3.1-11.el9_3.2
rapidfort Oracle Linux 9frr-selinux0:8.3.1-11.el9_3.2
rapidfort ubuntu 20.04frr0:8.1-1ubuntu1.8
rapidfort ubuntu 20.04rf-frr0:8.1-1ubuntu1.8
rapidfort ubuntu 22.04frr0:8.1-1ubuntu1.8
rapidfort ubuntu 22.04rf-frr0:8.1-1ubuntu1.8
rapidfort ubuntu 24.04frr0:8.1-1ubuntu1.8
rapidfort ubuntu 24.04rf-frr0:8.1-1ubuntu1.8
rocky 8frr7.5.1-13.el8_9.3
rocky 8frr-selinux7.5.1-13.el8_9.3
ubuntu 20.04-ESMfrr7.2.1-1ubuntu0.2+esm2
ubuntu 22.04frr8.1-1ubuntu1.8
ubuntu 23.04frr8.4.2-1ubuntu1.6

References

All 26 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.