synced 2 MIN AGO
01 Record

CVE-2023-31346

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

MediumPUBLISHEDCNA: AMD
CNA base score6.0 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
View raw JSON

02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.30% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 23.5% of scored records. A rank, not a probability.
NVD base score
6.0 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-02-13 19:18Z2 YR AGO
Last updated
2025-03-20 20:27Z1 YR AGO
Reserved
2023-04-27
Assigning CNA
AMD
Record state
PUBLISHED
Severity
Medium (CVSS 6.0)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Weaknesses
  • CWE-284Improper Access ControlPillar
  • CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
Data version
5.1
Document digest
d2b23cf14fade2705974dd78ecde52cfff07a15403d49a489d94a693198d2619

05 Affected products

VendorProductVersionsPlatforms
AMD3rd Gen AMD EPYC™ Processorsvariousx86
AMD4th Gen AMD EPYC™ Processorsvariousx86

06 References

07 Fixed in

AlmaLinux 8

  • iwl100-firmware
    Fixed in 39.31.5.1-122.el8_10.1
  • iwl1000-firmware
    Fixed in 1:39.31.5.1-122.el8_10.1
  • iwl105-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl135-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl2000-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl2030-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl3160-firmware
    Fixed in 1:25.30.13.0-122.el8_10.1
  • iwl3945-firmware
    Fixed in 15.32.2.9-122.el8_10.1
  • iwl4965-firmware
    Fixed in 228.61.2.24-122.el8_10.1
  • iwl5000-firmware
    Fixed in 8.83.5.1_1-122.el8_10.1
  • iwl5150-firmware
    Fixed in 8.24.2.2-122.el8_10.1
  • iwl6000-firmware
    Fixed in 9.221.4.1-122.el8_10.1
  • iwl6000g2a-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl6000g2b-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl6050-firmware
    Fixed in 41.28.5.1-122.el8_10.1
  • iwl7260-firmware
    Fixed in 1:25.30.13.0-122.el8_10.1
  • libertas-sd8686-firmware
    Fixed in 20240610-122.git90df68d2.el8_10
  • libertas-sd8787-firmware
    Fixed in 20240610-122.git90df68d2.el8_10
  • libertas-usb8388-firmware
    Fixed in 2:20240610-122.git90df68d2.el8_10
  • libertas-usb8388-olpc-firmware
    Fixed in 20240610-122.git90df68d2.el8_10
  • linux-firmware
    Fixed in 20240610-122.git90df68d2.el8_10

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • iwl100-firmware
    Fixed in 39.31.5.1-143.1.el9_4
  • iwl1000-firmware
    Fixed in 1:39.31.5.1-143.1.el9_4
  • iwl105-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl135-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl2000-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl2030-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl3160-firmware
    Fixed in 1:25.30.13.0-143.1.el9_4
  • iwl5000-firmware
    Fixed in 8.83.5.1_1-143.1.el9_4
  • iwl5150-firmware
    Fixed in 8.24.2.2-143.1.el9_4
  • iwl6000g2a-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl6000g2b-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl6050-firmware
    Fixed in 41.28.5.1-143.1.el9_4
  • iwl7260-firmware
    Fixed in 1:25.30.13.0-143.1.el9_4
  • libertas-sd8787-firmware
    Fixed in 20240603-143.1.el9_4
  • linux-firmware
    Fixed in 20240603-143.1.el9_4
  • linux-firmware-whence
    Fixed in 20240603-143.1.el9_4
  • netronome-firmware
    Fixed in 20240603-143.1.el9_4

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • iwl100-firmware
    Fixed in 39.31.5.1-122.el8_10.1
  • iwl1000-firmware
    Fixed in 1:39.31.5.1-122.el8_10.1
  • iwl105-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl135-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl2000-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl2030-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl3160-firmware
    Fixed in 1:25.30.13.0-122.el8_10.1
  • iwl3945-firmware
    Fixed in 15.32.2.9-122.el8_10.1
  • iwl4965-firmware
    Fixed in 228.61.2.24-122.el8_10.1
  • iwl5000-firmware
    Fixed in 8.83.5.1_1-122.el8_10.1
  • iwl5150-firmware
    Fixed in 8.24.2.2-122.el8_10.1
  • iwl6000-firmware
    Fixed in 9.221.4.1-122.el8_10.1
  • iwl6000g2a-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl6000g2b-firmware
    Fixed in 18.168.6.1-122.el8_10.1
  • iwl6050-firmware
    Fixed in 41.28.5.1-122.el8_10.1
  • iwl7260-firmware
    Fixed in 1:25.30.13.0-122.el8_10.1
  • libertas-sd8686-firmware
    Fixed in 20240610-122.git90df68d2.el8_10
  • libertas-sd8787-firmware
    Fixed in 20240610-122.git90df68d2.el8_10
  • libertas-usb8388-firmware
    Fixed in 2:20240610-122.git90df68d2.el8_10
  • libertas-usb8388-olpc-firmware
    Fixed in 20240610-122.git90df68d2.el8_10
  • linux-firmware
    Fixed in 20240610-122.git90df68d2.el8_10

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • iwl100-firmware
    Fixed in 39.31.5.1-143.1.el9_4
  • iwl1000-firmware
    Fixed in 1:39.31.5.1-143.1.el9_4
  • iwl105-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl135-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl2000-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl2030-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl3160-firmware
    Fixed in 1:25.30.13.0-143.1.el9_4
  • iwl5000-firmware
    Fixed in 8.83.5.1_1-143.1.el9_4
  • iwl5150-firmware
    Fixed in 8.24.2.2-143.1.el9_4
  • iwl6000g2a-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl6000g2b-firmware
    Fixed in 18.168.6.1-143.1.el9_4
  • iwl6050-firmware
    Fixed in 41.28.5.1-143.1.el9_4
  • iwl7260-firmware
    Fixed in 1:25.30.13.0-143.1.el9_4
  • libertas-sd8787-firmware
    Fixed in 20240603-143.1.el9_4
  • linux-firmware
    Fixed in 20240603-143.1.el9_4
  • linux-firmware-whence
    Fixed in 20240603-143.1.el9_4
  • netronome-firmware
    Fixed in 20240603-143.1.el9_4

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

  • linux-firmware
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • linux-firmware
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • linux-firmware
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • linux-firmware
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • linux-firmware
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • linux-firmware
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • linux-firmware
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • linux-firmware
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • linux-firmware
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.