CVE-2023-31356 Memory corruption in AMD EPYC™ 7003 Processors
Medium 4.4
Published
Updated
Check this codebase for CVE-2023-31356 and fix it if it is affected.
What it is: CVE-2023-31356 is a medium-severity memory corruption vulnerability in AMD EPYC™ 7003 Processors, published on 13 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-31356 in the wild and no public exploit code.
Affected product: AMD EPYC™ 7003 Processors. 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-2023-31356/ (Markdown: https://insights.sbomify.com/CVE-2023-31356/index.md)
A privileged attacker can corrupt guest private memory due to incomplete cleanup in AMD SEV firmware, compromising data integrity.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-31356?
CVE-2023-31356 is a medium-severity memory corruption vulnerability in AMD EPYC™ 7003 Processors, published on 13 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Incomplete system memory cleanup in SEV firmware could allow a privileged attacker to corrupt guest private memory, potentially resulting in a loss of data integrity.
Weakness: CWE-459
Which versions are affected by CVE-2023-31356?
Linux distribution packages (21)
iwl100-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:39.31.5.1-118.3.el8_8.1 |
iwl1000-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 1:39.31.5.1-118.3.el8_8.1 |
iwl105-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:18.168.6.1-118.3.el8_8.1 |
iwl135-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:18.168.6.1-118.3.el8_8.1 |
iwl2000-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:18.168.6.1-118.3.el8_8.1 |
iwl2030-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:18.168.6.1-118.3.el8_8.1 |
iwl3160-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 1:25.30.13.0-118.3.el8_8.1 |
iwl3945-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:15.32.2.9-118.3.el8_8.1 |
iwl4965-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:228.61.2.24-118.3.el8_8.1 |
iwl5000-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:8.83.5.1_1-118.3.el8_8.1 |
iwl5150-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:8.24.2.2-118.3.el8_8.1 |
iwl6000-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:9.221.4.1-118.3.el8_8.1 |
iwl6000g2a-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:18.168.6.1-118.3.el8_8.1 |
iwl6000g2b-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:18.168.6.1-118.3.el8_8.1 |
iwl6050-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:41.28.5.1-118.3.el8_8.1 |
iwl7260-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 1:25.30.13.0-118.3.el8_8.1 |
libertas-sd8686-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:20240827-118.3.git3cff7109.el8_8 |
libertas-sd8787-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:20240827-118.3.git3cff7109.el8_8 |
libertas-usb8388-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 2:20240827-118.3.git3cff7109.el8_8 |
libertas-usb8388-olpc-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:20240827-118.3.git3cff7109.el8_8 |
linux-firmware Red Hat:rhel_eus:8.8::baseos | All versions | 0:20240827-118.3.git3cff7109.el8_8 |
How do I fix CVE-2023-31356?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-31356 being exploited?
There is no known exploitation of CVE-2023-31356 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2023-31356, GHSA-3w7r-v4fr-r43w, RHSA-2024:7482, UBUNTU-CVE-2023-31356.