CVE-2021-26342
Summary
| CVE | CVE-2021-26342 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-05-11 17:15:00 UTC |
| Updated | 2022-05-19 20:05:00 UTC |
| Description | In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability. |
Risk And Classification
Problem Types: NVD-CWE-noinfo
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Amd | Epyc 7001 | - | All | All | All |
| Operating System | Amd | Epyc 7001 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7251 | - | All | All | All |
| Operating System | Amd | Epyc 7251 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7261 | - | All | All | All |
| Operating System | Amd | Epyc 7261 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7281 | - | All | All | All |
| Operating System | Amd | Epyc 7281 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 72f3 | - | All | All | All |
| Operating System | Amd | Epyc 72f3 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7301 | - | All | All | All |
| Operating System | Amd | Epyc 7301 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7313 | - | All | All | All |
| Hardware | Amd | Epyc 7313p | - | All | All | All |
| Operating System | Amd | Epyc 7313p Firmware | All | All | All | All |
| Operating System | Amd | Epyc 7313 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7343 | - | All | All | All |
| Operating System | Amd | Epyc 7343 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7351 | - | All | All | All |
| Hardware | Amd | Epyc 7351p | - | All | All | All |
| Operating System | Amd | Epyc 7351p Firmware | All | All | All | All |
| Operating System | Amd | Epyc 7351 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7371 | - | All | All | All |
| Operating System | Amd | Epyc 7371 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7373x | - | All | All | All |
| Operating System | Amd | Epyc 7373x Firmware | All | All | All | All |
| Hardware | Amd | Epyc 73f3 | - | All | All | All |
| Operating System | Amd | Epyc 73f3 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7401 | - | All | All | All |
| Hardware | Amd | Epyc 7401p | - | All | All | All |
| Operating System | Amd | Epyc 7401p Firmware | All | All | All | All |
| Operating System | Amd | Epyc 7401 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7413 | - | All | All | All |
| Operating System | Amd | Epyc 7413 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7443 | - | All | All | All |
| Hardware | Amd | Epyc 7443p | - | All | All | All |
| Operating System | Amd | Epyc 7443p Firmware | All | All | All | All |
| Operating System | Amd | Epyc 7443 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7451 | - | All | All | All |
| Operating System | Amd | Epyc 7451 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7453 | - | All | All | All |
| Operating System | Amd | Epyc 7453 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7473x | - | All | All | All |
| Operating System | Amd | Epyc 7473x Firmware | All | All | All | All |
| Hardware | Amd | Epyc 74f3 | - | All | All | All |
| Operating System | Amd | Epyc 74f3 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7501 | - | All | All | All |
| Operating System | Amd | Epyc 7501 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7513 | - | All | All | All |
| Operating System | Amd | Epyc 7513 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7543 | - | All | All | All |
| Hardware | Amd | Epyc 7543p | - | All | All | All |
| Operating System | Amd | Epyc 7543p Firmware | All | All | All | All |
| Operating System | Amd | Epyc 7543 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7551 | - | All | All | All |
| Hardware | Amd | Epyc 7551p | - | All | All | All |
| Operating System | Amd | Epyc 7551p Firmware | All | All | All | All |
| Operating System | Amd | Epyc 7551 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7573x | - | All | All | All |
| Operating System | Amd | Epyc 7573x Firmware | All | All | All | All |
| Hardware | Amd | Epyc 75f3 | - | All | All | All |
| Operating System | Amd | Epyc 75f3 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7601 | - | All | All | All |
| Operating System | Amd | Epyc 7601 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7643 | - | All | All | All |
| Operating System | Amd | Epyc 7643 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7663 | - | All | All | All |
| Operating System | Amd | Epyc 7663 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7713 | - | All | All | All |
| Hardware | Amd | Epyc 7713p | - | All | All | All |
| Operating System | Amd | Epyc 7713p Firmware | All | All | All | All |
| Operating System | Amd | Epyc 7713 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7763 | - | All | All | All |
| Operating System | Amd | Epyc 7763 Firmware | All | All | All | All |
| Hardware | Amd | Epyc 7773x | - | All | All | All |
| Operating System | Amd | Epyc 7773x Firmware | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028 | MISC | www.amd.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 752158 SUSE Enterprise Linux Security Update for kernel-firmware (SUSE-SU-2022:1751-1)
- 752173 SUSE Enterprise Linux Security Update for kernel-firmware (SUSE-SU-2022:1840-1)
- 752175 SUSE Enterprise Linux Security Update for kernel-firmware (SUSE-SU-2022:1847-1)
- 752177 SUSE Enterprise Linux Security Update for kernel-firmware (SUSE-SU-2022:1846-1)
- 752205 SUSE Enterprise Linux Security Update for kernel-firmware (SUSE-SU-2022:1923-1)