CVE-2024-7383 Libnbd: nbd server improper certificate validation
High 7.4
Published
Updated
Check this codebase for CVE-2024-7383 and fix it if it is affected.
What it is: CVE-2024-7383 is a high-severity vulnerability in Red Hat Enterprise Linux 10, published on 5 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-7383 in the wild and no public exploit code.
Affected product: Red Hat Enterprise Linux 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-2024-7383/ (Markdown: https://insights.sbomify.com/CVE-2024-7383/index.md)
Improper certificate validation in libnbd allows man-in-the-middle attacks on NBD traffic, enabling data interception or modification.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-7383?
CVE-2024-7383 is a high-severity vulnerability in Red Hat Enterprise Linux 10, published on 5 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in libnbd. The client did not always correctly verify the NBD server's certificate when using TLS to connect to an NBD server. This issue allows a man-in-the-middle attack on NBD traffic.
Weakness: CWE-295
Which versions are affected by CVE-2024-7383?
Linux distribution packages (29)
libnbd AlmaLinux:9 | All versions | 1.18.1-4.el9_4 |
libnbd-bash-completion AlmaLinux:9 | All versions | 1.18.1-4.el9_4 |
libnbd-devel AlmaLinux:9 | All versions | 1.18.1-4.el9_4 |
nbdfuse AlmaLinux:9 | All versions | 1.18.1-4.el9_4 |
ocaml-libnbd AlmaLinux:9 | All versions | 1.18.1-4.el9_4 |
ocaml-libnbd-devel AlmaLinux:9 | All versions | 1.18.1-4.el9_4 |
python3-libnbd AlmaLinux:9 | All versions | 1.18.1-4.el9_4 |
libnbd Red Hat:enterprise_linux:9::appstream | All versions | 0:1.18.1-4.el9_4 |
libnbd-bash-completion Red Hat:enterprise_linux:9::appstream | All versions | 0:1.18.1-4.el9_4 |
libnbd-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:1.18.1-4.el9_4 |
libnbd-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:1.18.1-4.el9_4 |
nbdfuse Red Hat:enterprise_linux:9::appstream | All versions | 0:1.18.1-4.el9_4 |
nbdfuse-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:1.18.1-4.el9_4 |
ocaml-libnbd-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:1.18.1-4.el9_4 |
python3-libnbd Red Hat:enterprise_linux:9::appstream | All versions | 0:1.18.1-4.el9_4 |
python3-libnbd-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:1.18.1-4.el9_4 |
libnbd-debuginfo Red Hat:enterprise_linux:9::crb | All versions | 0:1.18.1-4.el9_4 |
libnbd-debugsource Red Hat:enterprise_linux:9::crb | All versions | 0:1.18.1-4.el9_4 |
libnbd-devel Red Hat:enterprise_linux:9::crb | All versions | 0:1.18.1-4.el9_4 |
nbdfuse-debuginfo Red Hat:enterprise_linux:9::crb | All versions | 0:1.18.1-4.el9_4 |
ocaml-libnbd Red Hat:enterprise_linux:9::crb | All versions | 0:1.18.1-4.el9_4 |
ocaml-libnbd-debuginfo Red Hat:enterprise_linux:9::crb | All versions | 0:1.18.1-4.el9_4 |
ocaml-libnbd-devel Red Hat:enterprise_linux:9::crb | All versions | 0:1.18.1-4.el9_4 |
python3-libnbd-debuginfo Red Hat:enterprise_linux:9::crb | All versions | 0:1.18.1-4.el9_4 |
libnbd Rocky Linux:9 | All versions | 0:1.18.1-4.el9_4 |
libnbd SUSE:Linux Enterprise Module for Server Applications 15 SP6 | All versions | 1.18.5-150600.18.3.1 |
libnbd openSUSE:Leap 15.5 | All versions | 1.18.5-150300.8.21.1 |
libnbd openSUSE:Leap 15.6 | All versions | 1.18.5-150600.18.3.1 |
libnbd openSUSE:Tumbleweed | All versions | 1.20.2-1.1 |
How do I fix CVE-2024-7383?
Apply the vendor's patch.
Is CVE-2024-7383 being exploited?
There is no known exploitation of CVE-2024-7383 in the wild and no public exploit code.
Sources
Also known as ALSA-2024:6757, AZL-47428, AZL-47436, CLSA-2025-1764772736, DEBIAN-CVE-2024-7383, GHSA-rqmr-f8r9-69wq and 6 more.