CVE-2023-31346 Information disclosure in 3rd Gen AMD EPYC™ Processors
Medium 6.0
Published
Updated
Check this codebase for CVE-2023-31346 and fix it if it is affected.
What it is: CVE-2023-31346 is a medium-severity vulnerability in Amd Epyc 72f3 Firmware, published on 13 Feb 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-2023-31346 in the wild and no public exploit code.
Affected product: Amd Epyc 72f3 Firmware. 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-2023-31346/ (Markdown: https://insights.sbomify.com/CVE-2023-31346/index.md)
A privileged attacker can access stale data from other guests due to uninitialized memory in AMD SEV Firmware.
- 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-2023-31346?
CVE-2023-31346 is a medium-severity vulnerability in Amd Epyc 72f3 Firmware, published on 13 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests.
Weakness: CWE-284
Which versions are affected by CVE-2023-31346?
It affects 62 products.
Linux distribution packages (40)
iwl100-firmware AlmaLinux:8 | All versions | 39.31.5.1-122.el8_10.1 |
iwl1000-firmware AlmaLinux:8 | All versions | 1:39.31.5.1-122.el8_10.1 |
iwl105-firmware AlmaLinux:8 | All versions | 18.168.6.1-122.el8_10.1 |
iwl135-firmware AlmaLinux:8 | All versions | 18.168.6.1-122.el8_10.1 |
iwl2000-firmware AlmaLinux:8 | All versions | 18.168.6.1-122.el8_10.1 |
iwl2030-firmware AlmaLinux:8 | All versions | 18.168.6.1-122.el8_10.1 |
iwl3160-firmware AlmaLinux:8 | All versions | 1:25.30.13.0-122.el8_10.1 |
iwl3945-firmware AlmaLinux:8 | All versions | 15.32.2.9-122.el8_10.1 |
iwl4965-firmware AlmaLinux:8 | All versions | 228.61.2.24-122.el8_10.1 |
iwl5000-firmware AlmaLinux:8 | All versions | 8.83.5.1_1-122.el8_10.1 |
iwl5150-firmware AlmaLinux:8 | All versions | 8.24.2.2-122.el8_10.1 |
iwl6000-firmware AlmaLinux:8 | All versions | 9.221.4.1-122.el8_10.1 |
iwl6000g2a-firmware AlmaLinux:8 | All versions | 18.168.6.1-122.el8_10.1 |
iwl6000g2b-firmware AlmaLinux:8 | All versions | 18.168.6.1-122.el8_10.1 |
iwl6050-firmware AlmaLinux:8 | All versions | 41.28.5.1-122.el8_10.1 |
iwl7260-firmware AlmaLinux:8 | All versions | 1:25.30.13.0-122.el8_10.1 |
libertas-sd8686-firmware AlmaLinux:8 | All versions | 20240610-122.git90df68d2.el8_10 |
libertas-sd8787-firmware AlmaLinux:8 | All versions | 20240610-122.git90df68d2.el8_10 |
libertas-usb8388-firmware AlmaLinux:8 | All versions | 2:20240610-122.git90df68d2.el8_10 |
libertas-usb8388-olpc-firmware AlmaLinux:8 | All versions | 20240610-122.git90df68d2.el8_10 |
linux-firmware AlmaLinux:8 | All versions | 20240610-122.git90df68d2.el8_10 |
iwl100-firmware AlmaLinux:9 | All versions | 39.31.5.1-143.1.el9_4 |
iwl1000-firmware AlmaLinux:9 | All versions | 1:39.31.5.1-143.1.el9_4 |
iwl105-firmware AlmaLinux:9 | All versions | 18.168.6.1-143.1.el9_4 |
iwl135-firmware AlmaLinux:9 | All versions | 18.168.6.1-143.1.el9_4 |
iwl2000-firmware AlmaLinux:9 | All versions | 18.168.6.1-143.1.el9_4 |
iwl2030-firmware AlmaLinux:9 | All versions | 18.168.6.1-143.1.el9_4 |
iwl3160-firmware AlmaLinux:9 | All versions | 1:25.30.13.0-143.1.el9_4 |
iwl5000-firmware AlmaLinux:9 | All versions | 8.83.5.1_1-143.1.el9_4 |
iwl5150-firmware AlmaLinux:9 | All versions | 8.24.2.2-143.1.el9_4 |
iwl6000g2a-firmware AlmaLinux:9 | All versions | 18.168.6.1-143.1.el9_4 |
iwl6000g2b-firmware AlmaLinux:9 | All versions | 18.168.6.1-143.1.el9_4 |
iwl6050-firmware AlmaLinux:9 | All versions | 41.28.5.1-143.1.el9_4 |
iwl7260-firmware AlmaLinux:9 | All versions | 1:25.30.13.0-143.1.el9_4 |
libertas-sd8787-firmware AlmaLinux:9 | All versions | 20240603-143.1.el9_4 |
linux-firmware AlmaLinux:9 | All versions | 20240603-143.1.el9_4 |
linux-firmware-whence AlmaLinux:9 | All versions | 20240603-143.1.el9_4 |
netronome-firmware AlmaLinux:9 | All versions | 20240603-143.1.el9_4 |
iwl100-firmware Red Hat:enterprise_linux:8::baseos | All versions | 0:39.31.5.1-122.el8_10.1 |
iwl1000-firmware Red Hat:enterprise_linux:8::baseos | All versions | 1:39.31.5.1-122.el8_10.1 |
Products include Amd Epyc 7203 Firmware, Amd Epyc 7203p Firmware, Amd Epyc 72f3 Firmware, Amd Epyc 7303 Firmware, Amd Epyc 7303p Firmware, Amd Epyc 7313 Firmware and 56 more.
How do I fix CVE-2023-31346?
Apply the vendor's patch.
Is CVE-2023-31346 being exploited?
There is no known exploitation of CVE-2023-31346 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Amd Epyc 72f3 Firmware
- CVE-2024-21980 Memory corruption in 3rd Gen AMD EPYC™ Processors
- CVE-2023-20591 Other in AMD EPYC™ 7003 Series Processors
- CVE-2023-20533 Denial of service in 2nd Gen AMD EPYC™ Processors
- CVE-2023-31355 Memory corruption in 3rd Gen AMD EPYC™ Processors
- CVE-2024-21978 Information disclosure in 3rd Gen AMD EPYC™ Processors
Sources
Also known as ALSA-2024:4262, ALSA-2024:4774, GHSA-rvmr-97cf-9f3m, RHSA-2024:4262, RHSA-2024:4409, RHSA-2024:4733 and 5 more.