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Fencer Vulns
medium 6.5

CVE-2024-2182 json

Ovn: insufficient validation of bfd packets may lead to denial of service

published 2024-03-12 2 y ago modified 2026-10-19 20 d ago also EUVD-2024-27144

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

A flaw was found in the Open Virtual Network (OVN). In OVN clusters where BFD is used between hypervisors for high availability, an attacker can inject specially crafted BFD packets from inside unprivileged workloads, including virtual machines or containers, that can trigger a denial of service.

Patch / fix

  • Red Hat Fast Datapath for Red Hat Enterprise Linux 8 0:21.12.0-142.el8fdp, 0:22.03.3-71.el8fdp, 0:22.12.1-94.el8fdp, 0:23.03.1-100.el8fdp, 0:23.06.1-112.el8fdp
  • Red Hat Fast Datapath for Red Hat Enterprise Linux 9 0:22.03.3-71.el9fdp, 0:22.12.1-94.el9fdp, 0:23.03.1-100.el9fdp, 0:23.06.1-112.el9fdp, 0:23.09.0-136.el9fdp
  • ovn Debian 12 23.03.1-1~deb12u2
  • ovn Debian 13 24.03.1-1

debian advisories DEBIAN-CVE-2024-2182

  • ovn Ubuntu 20.04 LTS 20.03.2-0ubuntu0.20.04.5
  • ovn Ubuntu 22.04 LTS 22.03.3-0ubuntu0.22.04.2

ubuntu advisories UBUNTU-CVE-2024-2182

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ovn-2021 RHEL 8 21.12.0-142.el8fdp
  • ovn-2021-host RHEL 8 21.12.0-142.el8fdp
  • ovn-2021-vtep RHEL 8 21.12.0-142.el8fdp
  • ovn-2021-central RHEL 8 21.12.0-142.el8fdp
  • ovn23.06 RHEL 8 23.06.1-112.el8fdp
  • ovn23.06-host RHEL 8 23.06.1-112.el8fdp
  • ovn23.06-vtep RHEL 8 23.06.1-112.el8fdp
  • ovn23.06-central RHEL 8 23.06.1-112.el8fdp

red hat advisories RHSA-2024:4035RHSA-2024:1385RHSA-2024:1387RHSA-2024:1386RHSA-2024:1388RHSA-2024:1392

  • openvswitch3 SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +3 more 3.1.7-150500.3.25.1
  • openvswitch SLES for SAP 15 SP6, SLES 15 SP6-LTSS, openSUSE Leap 15.6 3.1.7-150600.33.9.1
  • openvswitch Linux Micro 6.0 3.1.7-4.1
  • openvswitch Linux Micro 6.1 3.1.7-slfo.1.1_2.1
  • openvswitch SLES LTSS Extended Security 12 SP5 2.11.5-3.27.1

suse advisories SUSE-SU-2026:0619-1SUSE-SU-2026:0290-1SUSE-SU-2026:0280-1SUSE-SU-2026:20049-1SUSE-SU-2026:20061-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-2182 updated cvss 6.5

ovn: insufficient validation of BFD packets may lead to denial of service

  • Red Hat Fast Datapath for RHEL 7 ovn2.11, ovn2.12, ovn2.13, ovn2.11-host, ovn2.11-vtep, ovn2.12-host, +6 more Red Hat Fast Datapath for RHEL 8 ovn2.11, ovn2.12, ovn2.13, ovn22.06, ovn22.09, ovn2.11-host, +14 more
    affected: no fix planned “Out of support scope”
  • Red Hat Fast Datapath for RHEL 9 ovn-2021, ovn22.06, ovn22.09, ovn24.03, ovn24.09, ovn25.03, +27 more
    affected: no fix available, no fix planned “Out of support scope”
  • Red Hat Fast Datapath for RHEL 10 ovn25.03, ovn25.09, ovn25.03-host, ovn25.03-vtep, ovn25.09-host, ovn25.09-vtep, +7 more Red Hat OpenShift Container Platform 4 ovn22.06, ovn22.09, ovn22.12, ovn23.03, ovn23.06, ovn23.09, +26 more
    affected: no fix available “Fix deferred”
  • Red Hat OpenStack Platform 13 (Queens) ovn2.11, ovn2.11-host, ovn2.11-vtep, ovn2.11-central
    affected: no fix planned “Out of support scope”
  • Red Hat Fast Datapath for Red Hat Enterprise Linux 8 ovn22.03 22.03.3-71.el8fdp, ovn22.12 22.12.1-94.el8fdp, ovn-2021 21.12.0-142.el8fdp, ovn23.03 23.03.1-100.el8fdp, ovn23.06 23.06.1-112.el8fdp, ovn22.03-host 22.03.3-71.el8fdp, +14 more
    fixed: vendor fix RHSA-2024:4035
  • Red Hat Fast Datapath for Red Hat Enterprise Linux 9 ovn22.03 22.03.3-71.el9fdp, ovn22.12 22.12.1-94.el9fdp, ovn23.03 23.03.1-100.el9fdp, ovn23.06 23.06.1-112.el9fdp, ovn23.09 23.09.0-136.el9fdp, ovn22.03-host 22.03.3-71.el9fdp, +14 more
    fixed: vendor fix RHSA-2024:1393

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Red Hat Fast Datapath for Red Hat Enterprise Linux 8
  • Red Hat Fast Datapath for Red Hat Enterprise Linux 9
  • Red Hat Fast Datapath for RHEL 10
  • Red Hat Fast Datapath for RHEL 7
  • Red Hat Fast Datapath for RHEL 8
  • Red Hat Fast Datapath for RHEL 9
  • Red Hat Red Hat OpenShift Container Platform 4
  • Red Hat Red Hat OpenStack Platform 13 (Queens)

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.