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Vulnerability · Published Feb 13, 2024 · Assigned by AMD

CVE-2023-31346

Medium 6.0

In plain English

A medium-severity improper access control in 3rd Gen AMD EPYC™ Processors from AMD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.0Medium
Exploit odds (30 days)0.3%top 76.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC

Official description

Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8iwl100-firmware39.31.5.1-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl100-firmware39.31.5.1-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl1000-firmware1:39.31.5.1-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl1000-firmware1:39.31.5.1-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl105-firmware18.168.6.1-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl105-firmware18.168.6.1-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl135-firmware18.168.6.1-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl135-firmware18.168.6.1-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl2000-firmware18.168.6.1-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl2000-firmware18.168.6.1-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl2030-firmware18.168.6.1-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl2030-firmware18.168.6.1-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl3160-firmware1:25.30.13.0-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl3160-firmware1:25.30.13.0-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl3945-firmware15.32.2.9-122.el8_10.1ALSA-2024:4262
AlmaLinux:8iwl4965-firmware228.61.2.24-122.el8_10.1ALSA-2024:4262
AlmaLinux:8iwl5000-firmware8.83.5.1_1-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl5000-firmware8.83.5.1_1-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl5150-firmware8.24.2.2-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl5150-firmware8.24.2.2-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl6000-firmware9.221.4.1-122.el8_10.1ALSA-2024:4262
AlmaLinux:8iwl6000g2a-firmware18.168.6.1-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl6000g2a-firmware18.168.6.1-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl6000g2b-firmware18.168.6.1-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl6000g2b-firmware18.168.6.1-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl6050-firmware41.28.5.1-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl6050-firmware41.28.5.1-143.1.el9_4ALSA-2024:4774
AlmaLinux:8iwl7260-firmware1:25.30.13.0-122.el8_10.1ALSA-2024:4262
AlmaLinux:9iwl7260-firmware1:25.30.13.0-143.1.el9_4ALSA-2024:4774
AlmaLinux:8libertas-sd8686-firmware20240610-122.git90df68d2.el8_10ALSA-2024:4262
AlmaLinux:8libertas-sd8787-firmware20240610-122.git90df68d2.el8_10ALSA-2024:4262
AlmaLinux:9libertas-sd8787-firmware20240603-143.1.el9_4ALSA-2024:4774
AlmaLinux:8libertas-usb8388-firmware2:20240610-122.git90df68d2.el8_10ALSA-2024:4262
AlmaLinux:8libertas-usb8388-olpc-firmware20240610-122.git90df68d2.el8_10ALSA-2024:4262
AlmaLinux:8linux-firmware20240610-122.git90df68d2.el8_10ALSA-2024:4262
AlmaLinux:9linux-firmware20240603-143.1.el9_4ALSA-2024:4774
AlmaLinux:9linux-firmware-whence20240603-143.1.el9_4ALSA-2024:4774
AlmaLinux:9netronome-firmware20240603-143.1.el9_4ALSA-2024:4774
Rocky Linux:8linux-firmware0:20240610-122.git90df68d2.el8_10RLSA-2024:4262
Ubuntu:22.04:LTSlinux-firmwareno fix listedUBUNTU-CVE-2023-31346
Ubuntu:24.04:LTSlinux-firmwareno fix listedUBUNTU-CVE-2023-31346
Ubuntu:25.10linux-firmwareno fix listedUBUNTU-CVE-2023-31346
Ubuntu:26.04:LTSlinux-firmwareno fix listedUBUNTU-CVE-2023-31346
Ubuntu:26.10linux-firmwareno fix listedUBUNTU-CVE-2023-31346

Affected products (as reported)

VendorProductVersions
AMD 3rd Gen AMD EPYC™ Processors various
AMD 4th Gen AMD EPYC™ Processors various

Weakness: CWE-284 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

References