CVE-2024-2182 Ovn: insufficient validation of bfd packets may lead to denial of service
Medium 6.5
Published
Updated
Check this codebase for CVE-2024-2182 and fix it if it is affected.
What it is: CVE-2024-2182 is a medium-severity denial of service vulnerability in Red Hat Fast Datapath for RHEL 10, published on 12 Mar 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-2182 in the wild and no public exploit code.
Affected product: Red Hat Fast Datapath for RHEL 10. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2024-2182/ (Markdown: https://insights.sbomify.com/CVE-2024-2182/index.md)
Attackers can cause denial of service in OVN clusters by injecting crafted BFD packets from unprivileged workloads when BFD is enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-2182?
CVE-2024-2182 is a medium-severity denial of service vulnerability in Red Hat Fast Datapath for RHEL 10, published on 12 Mar 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-346
Which versions are affected by CVE-2024-2182?
Linux distribution packages (40)
ovn-2021 Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:21.12.0-142.el8fdp |
ovn-2021-central Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:21.12.0-142.el8fdp |
ovn-2021-central-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:21.12.0-142.el8fdp |
ovn-2021-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:21.12.0-142.el8fdp |
ovn-2021-debugsource Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:21.12.0-142.el8fdp |
ovn-2021-host Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:21.12.0-142.el8fdp |
ovn-2021-host-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:21.12.0-142.el8fdp |
ovn-2021-vtep Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:21.12.0-142.el8fdp |
ovn-2021-vtep-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:21.12.0-142.el8fdp |
ovn22.03 Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.03.3-71.el8fdp |
ovn22.03-central Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.03.3-71.el8fdp |
ovn22.03-central-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.03.3-71.el8fdp |
ovn22.03-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.03.3-71.el8fdp |
ovn22.03-debugsource Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.03.3-71.el8fdp |
ovn22.03-host Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.03.3-71.el8fdp |
ovn22.03-host-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.03.3-71.el8fdp |
ovn22.03-vtep Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.03.3-71.el8fdp |
ovn22.03-vtep-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.03.3-71.el8fdp |
ovn22.12 Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.12.1-94.el8fdp |
ovn22.12-central Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.12.1-94.el8fdp |
ovn22.12-central-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.12.1-94.el8fdp |
ovn22.12-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.12.1-94.el8fdp |
ovn22.12-debugsource Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.12.1-94.el8fdp |
ovn22.12-host Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.12.1-94.el8fdp |
ovn22.12-host-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.12.1-94.el8fdp |
ovn22.12-vtep Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.12.1-94.el8fdp |
ovn22.12-vtep-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:22.12.1-94.el8fdp |
ovn23.03 Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.03.1-100.el8fdp |
ovn23.03-central Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.03.1-100.el8fdp |
ovn23.03-central-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.03.1-100.el8fdp |
ovn23.03-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.03.1-100.el8fdp |
ovn23.03-debugsource Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.03.1-100.el8fdp |
ovn23.03-host Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.03.1-100.el8fdp |
ovn23.03-host-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.03.1-100.el8fdp |
ovn23.03-vtep Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.03.1-100.el8fdp |
ovn23.03-vtep-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.03.1-100.el8fdp |
ovn23.06 Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.06.1-112.el8fdp |
ovn23.06-central Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.06.1-112.el8fdp |
ovn23.06-central-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.06.1-112.el8fdp |
ovn23.06-debuginfo Red Hat:enterprise_linux:8::fastdatapath | All versions | 0:23.06.1-112.el8fdp |
How do I fix CVE-2024-2182?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-2182 being exploited?
There is no known exploitation of CVE-2024-2182 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2024-2182, GHSA-p67c-35g3-9pqc, RHSA-2024:1385, RHSA-2024:1386, RHSA-2024:1387, RHSA-2024:1388 and 9 more.