Incomplete system memory cleanup in SEV firmware could allow a privileged attacker to…
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| AMD | AMD EPYC™ 7003 Processors | — | MilanPI 1.0.0.C | Patch available | CNA |
| AMD | AMD EPYC™ 9004 Processors | — | GenoaPI 1.0.0.B | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 7003 | — | "EmbMilanPI-SP3 1.0.0.8" | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 9004 | — | EmbGenoaPI-SP5 1.0.0.6 | Patch available | CNA |
- AMD EPYC™ 7003 Processors VendorAMD Affected — Fixed in MilanPI 1.0.0.C Patch available CNA
- AMD EPYC™ 9004 Processors VendorAMD Affected — Fixed in GenoaPI 1.0.0.B Patch available CNA
- AMD EPYC™ Embedded 7003 VendorAMD Affected — Fixed in "EmbMilanPI-SP3 1.0.0.8" Patch available CNA
- AMD EPYC™ Embedded 9004 VendorAMD Affected — Fixed in EmbGenoaPI-SP5 1.0.0.6 Patch available CNA
Remediation
- Fix · CNA AMD EPYC™ 7003 Processors (AMD) Fixed in MilanPI 1.0.0.C
- Fix · CNA AMD EPYC™ 9004 Processors (AMD) Fixed in GenoaPI 1.0.0.B
- Fix · CNA AMD EPYC™ Embedded 7003 (AMD) Fixed in "EmbMilanPI-SP3 1.0.0.8"
- Fix · CNA AMD EPYC™ Embedded 9004 (AMD) Fixed in EmbGenoaPI-SP5 1.0.0.6
Red Hat 5 advisories
- RHSA-2024:7484 Released 2024-10-02 · Red Hat rating Moderatelinux-firmware security update
- Red Hat Enterprise Linux BaseOS (v. 9) iwl100-firmware-39.31.5.1-143.3.el9_4, iwl1000-firmware-1:39.31.5.1-143.3.el9_4, iwl105-firmware-18.168.6.1-143.3.el9_4 +14
- RHSA-2024:7481 Released 2024-10-02 · Red Hat rating Importantlinux-firmware security update
- Red Hat Enterprise Linux BaseOS (v. 8) iwl100-firmware-39.31.5.1-124.el8_10.1, iwl1000-firmware-1:39.31.5.1-124.el8_10.1, iwl105-firmware-18.168.6.1-124.el8_10.1 +18
- RHSA-2024:7482 Released 2024-10-02 · Red Hat rating Moderatelinux-firmware security update
- Red Hat Enterprise Linux BaseOS EUS (v.8.8) iwl100-firmware-39.31.5.1-118.3.el8_8.1, iwl1000-firmware-1:39.31.5.1-118.3.el8_8.1, iwl105-firmware-18.168.6.1-118.3.el8_8.1 +18
Show 2 more Red Hat advisories
- RHSA-2024:7483 Released 2024-10-02 · Red Hat rating Lowlinux-firmware security update
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) iwl100-firmware-39.31.5.1-138.3.el9_2, iwl1000-firmware-1:39.31.5.1-138.3.el9_2, iwl105-firmware-18.168.6.1-138.3.el9_2 +14
- RHSA-2024:7418 Released 2024-10-01 · Red Hat rating Moderatelinux-firmware security update
- Red Hat Enterprise Linux BaseOS AUS (v.8.6) iwl100-firmware-39.31.5.1-114.3.el8_6.1, iwl1000-firmware-1:39.31.5.1-114.3.el8_6.1, iwl105-firmware-18.168.6.1-114.3.el8_6.1 +18
- Red Hat Enterprise Linux BaseOS E4S (v.8.6) iwl100-firmware-39.31.5.1-114.3.el8_6.1, iwl1000-firmware-1:39.31.5.1-114.3.el8_6.1, iwl105-firmware-18.168.6.1-114.3.el8_6.1 +18
- Red Hat Enterprise Linux BaseOS TUS (v.8.6) iwl100-firmware-39.31.5.1-114.3.el8_6.1, iwl1000-firmware-1:39.31.5.1-114.3.el8_6.1, iwl105-firmware-18.168.6.1-114.3.el8_6.1 +18
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
AMD EPYC™ 7003 Processors, AMD EPYC™ 9004 Processors, AMD EPYC™ Embedded 7003 — amd.com/en/resources/product-security/bulletin/amd-sb-3003.…
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2023-07029 Time-of-check time-of-use race condition in AMD EPYC™ 7001 ProcessorsPriority LOW 34
- TI-2023-07034 IOMMU improperly handles certain special address ranges with invalid device table entries…Priority LOW 26
- TI-2021-21465 Buffer overflow in AMD EPYC™ 7001 ProcessorsPriority LOW 23
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2024:7481 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:7484 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.6) | Fixed | RHSA-2024:7418 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.6) | Fixed | RHSA-2024:7418 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.8) | Fixed | RHSA-2024:7482 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.2) | Fixed | RHSA-2024:7483 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.6) | Fixed | RHSA-2024:7418 |
Not affected: 3 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2023-31356
- 2026-10-03 Alias added: GHSA-3w7r-v4fr-r43w
References
More AMD vulnerabilities
- TI-2026-36341 AI Tensor Engine for ROCm (AITER) 0.1.14 Unauthenticated RCE via MessageQueue.recv() Pickle Deserialization CVSS 4.0CRITICAL 9.2
- TI-2023-07046 Improper privilege management in AMD Radeon™ RX 5000 Series Graphics Cards CVSS 3.1HIGH 7.8
- TI-2023-04574 GPU kernel implementations susceptible to memory leak CVSS 3.1MEDIUM 6.5
- TI-2023-07042 Information disclosure through error messages in AMD Ryzen™ 3000 Series Desktop… CVSS 3.1MEDIUM 5.5
- TI-2023-23747 PVRIC (PowerVR Image Compression) on Imagination 2018 and later GPU devices offers… CVSS 3.1MEDIUM 5.3
- TI-2022-07839 Improper access control in System Management Mode (SMM) may allow an attacker to write to… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-31356 · CVE Program
- CVE-2023-31356 · NVD
- FIRST EPSS
- GHSA-3w7r-v4fr-r43w · GitHub Advisory Database · CC BY 4.0
- CVE-2023-31356 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences