synced 4 MIN AGO
01 Record

CVE-2023-31356

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.

MediumPUBLISHEDCNA: AMD
CNA base score4.4 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
View raw JSON

02 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.

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
0.21% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 11.6% of scored records. A rank, not a probability.
NVD base score
4.4 (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:U/C:N/I:H/A:N
NVD analysis status
Deferred. 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
2024-08-13 16:54Z2 YR AGO
Last updated
2025-02-11 22:48Z1 YR AGO
Reserved
2023-04-27
Assigning CNA
AMD
Record state
PUBLISHED
Severity
Medium (CVSS 4.4)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Weaknesses
Data version
5.1
Document digest
bb323f0ed1368d27a57704838d5581da1ce3a68832d2e5420cfb1fca90c8e938

05 Affected products

VendorProductVersionsPlatforms
AMDAMD EPYC™ 7003 ProcessorsNot specified—
AMDAMD EPYC™ 9004 ProcessorsNot specified—
AMDAMD EPYC™ Embedded 7003Not specified—
AMDAMD EPYC™ Embedded 9004Not specified—

06 References

07 Fixed in

AlmaLinux 8

  • iwl100-firmware
    Fixed in 39.31.5.1-124.el8_10.1
  • iwl1000-firmware
    Fixed in 1:39.31.5.1-124.el8_10.1
  • iwl105-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl135-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl2000-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl2030-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl3160-firmware
    Fixed in 1:25.30.13.0-124.el8_10.1
  • iwl3945-firmware
    Fixed in 15.32.2.9-124.el8_10.1
  • iwl4965-firmware
    Fixed in 228.61.2.24-124.el8_10.1
  • iwl5000-firmware
    Fixed in 8.83.5.1_1-124.el8_10.1
  • iwl5150-firmware
    Fixed in 8.24.2.2-124.el8_10.1
  • iwl6000-firmware
    Fixed in 9.221.4.1-124.el8_10.1
  • iwl6000g2a-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl6000g2b-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl6050-firmware
    Fixed in 41.28.5.1-124.el8_10.1
  • iwl7260-firmware
    Fixed in 1:25.30.13.0-124.el8_10.1
  • libertas-sd8686-firmware
    Fixed in 20240827-124.git3cff7109.el8_10
  • libertas-sd8787-firmware
    Fixed in 20240827-124.git3cff7109.el8_10
  • libertas-usb8388-firmware
    Fixed in 2:20240827-124.git3cff7109.el8_10
  • libertas-usb8388-olpc-firmware
    Fixed in 20240827-124.git3cff7109.el8_10
  • linux-firmware
    Fixed in 20240827-124.git3cff7109.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 39.31.5.1-143.3.el9_4
  • iwl1000-firmware
    Fixed in 1:39.31.5.1-143.3.el9_4
  • iwl105-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl135-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl2000-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl2030-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl3160-firmware
    Fixed in 1:25.30.13.0-143.3.el9_4
  • iwl5000-firmware
    Fixed in 8.83.5.1_1-143.3.el9_4
  • iwl5150-firmware
    Fixed in 8.24.2.2-143.3.el9_4
  • iwl6000g2a-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl6000g2b-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl6050-firmware
    Fixed in 41.28.5.1-143.3.el9_4
  • iwl7260-firmware
    Fixed in 1:25.30.13.0-143.3.el9_4
  • libertas-sd8787-firmware
    Fixed in 20240905-143.3.el9_4
  • linux-firmware
    Fixed in 20240905-143.3.el9_4
  • linux-firmware-whence
    Fixed in 20240905-143.3.el9_4
  • netronome-firmware
    Fixed in 20240905-143.3.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 39.31.5.1-124.el8_10.1
  • iwl1000-firmware
    Fixed in 1:39.31.5.1-124.el8_10.1
  • iwl105-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl135-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl2000-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl2030-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl3160-firmware
    Fixed in 1:25.30.13.0-124.el8_10.1
  • iwl3945-firmware
    Fixed in 15.32.2.9-124.el8_10.1
  • iwl4965-firmware
    Fixed in 228.61.2.24-124.el8_10.1
  • iwl5000-firmware
    Fixed in 8.83.5.1_1-124.el8_10.1
  • iwl5150-firmware
    Fixed in 8.24.2.2-124.el8_10.1
  • iwl6000-firmware
    Fixed in 9.221.4.1-124.el8_10.1
  • iwl6000g2a-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl6000g2b-firmware
    Fixed in 18.168.6.1-124.el8_10.1
  • iwl6050-firmware
    Fixed in 41.28.5.1-124.el8_10.1
  • iwl7260-firmware
    Fixed in 1:25.30.13.0-124.el8_10.1
  • libertas-sd8686-firmware
    Fixed in 20240827-124.git3cff7109.el8_10
  • libertas-sd8787-firmware
    Fixed in 20240827-124.git3cff7109.el8_10
  • libertas-usb8388-firmware
    Fixed in 2:20240827-124.git3cff7109.el8_10
  • libertas-usb8388-olpc-firmware
    Fixed in 20240827-124.git3cff7109.el8_10
  • linux-firmware
    Fixed in 20240827-124.git3cff7109.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 39.31.5.1-143.3.el9_4
  • iwl1000-firmware
    Fixed in 1:39.31.5.1-143.3.el9_4
  • iwl105-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl135-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl2000-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl2030-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl3160-firmware
    Fixed in 1:25.30.13.0-143.3.el9_4
  • iwl5000-firmware
    Fixed in 8.83.5.1_1-143.3.el9_4
  • iwl5150-firmware
    Fixed in 8.24.2.2-143.3.el9_4
  • iwl6000g2a-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl6000g2b-firmware
    Fixed in 18.168.6.1-143.3.el9_4
  • iwl6050-firmware
    Fixed in 41.28.5.1-143.3.el9_4
  • iwl7260-firmware
    Fixed in 1:25.30.13.0-143.3.el9_4
  • libertas-sd8787-firmware
    Fixed in 20240905-143.3.el9_4
  • linux-firmware
    Fixed in 20240905-143.3.el9_4
  • linux-firmware-whence
    Fixed in 20240905-143.3.el9_4
  • netronome-firmware
    Fixed in 20240905-143.3.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.

Debian 12

  • amd64-microcode
    Fixed in 3.20240820.1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • amd64-microcode
    Fixed in 3.20240820.1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • amd64-microcode
    Fixed in 3.20240820.1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • amd64-microcode
    Fixed in 3.20250311.1ubuntu0.24.04.1

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.