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No exploitation reportedFix available

CVE-2023-31356

No exploitation reported by the sources we read.

  • Published2024-08-13
  • WeaknessCWE-459

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2024-08-1317:15CVE publishedNVD

Versions per branch

Products declared by the CNA4 products

As AMD, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • AMD EPYC™ 7003 Processorsother versions: affected

    Not affected = MilanPI 1.0.0.C

  • AMD EPYC™ 9004 Processorsother versions: affected

    Not affected = GenoaPI 1.0.0.B

  • AMD EPYC™ Embedded 7003other versions: affected

    Not affected = "EmbMilanPI-SP3 1.0.0.8"

  • AMD EPYC™ Embedded 9004other versions: affected

    Not affected = EmbGenoaPI-SP5 1.0.0.6

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-02-11

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • amd64-microcodeUbuntu:24.04:LTSall versions · fixed in 3.20250311.1ubuntu0.24.04.1
  • amd64-microcodeDebian:14all versions · fixed in 3.20240820.1
  • amd64-microcodeDebian:13all versions · fixed in 3.20240820.1
  • amd64-microcodeDebian:12all versions · fixed in 3.20240820.1~deb12u1
  • iwl100-firmwareTuxCare:CentOS:8.5all versions · fixed in 39.31.5.1-103.gitd79c2677.el8.tuxcare.els6
  • iwl100-firmwareTuxCare:CentOS:8.4all versions · fixed in 39.31.5.1-102.git05789708.el8.tuxcare.els6
  • iwl100-firmwareTuxCare:CentOS-Stream:8all versions · fixed in 39.31.5.1-121.gitb3132c18.el8.tuxcare.els3
  • iwl100-firmwareTuxCare:AlmaLinux:9.2all versions · fixed in 39.31.5.1-135.el9_2.alma.1.tuxcare.els5

143 more package ranges on OSV.dev

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Published
2024-08-13
Last Modified
2026-06-17
NVD status
Deferred
GitHub Advisory
GHSA-3w7r-v4fr-r43w

Frequently asked questions

What is 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.

Is CVE-2023-31356 actively exploited?

Active exploitation of CVE-2023-31356 has not been confirmed. Its EPSS score was 0.2% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-31356?

CVE-2023-31356 has a CVSS v3 base score of 4.4 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N.

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