medium5.5
CVE-2021-26339
A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denia…
Impact
A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code includes a specific x86 instruction sequence that would not be generated by compilers.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Amd | Epyc 7763 Firmware | before milanpi-sp3_1.0.0.7 |
| Amd | Epyc 7713p Firmware | before milanpi-sp3_1.0.0.7 |
| Amd | Epyc 7713 Firmware | before milanpi-sp3_1.0.0.7 |
| Amd | Epyc 7663 Firmware | before milanpi-sp3_1.0.0.7 |
| Amd | Epyc 7643 Firmware | before milanpi-sp3_1.0.0.7 |
| Amd | Epyc 75f3 Firmware | before milanpi-sp3_1.0.0.7 |
| Amd | Epyc 7543p Firmware | before milanpi-sp3_1.0.0.7 |
| Amd | Epyc 7543 Firmware | before milanpi-sp3_1.0.0.7 |
| Amd | Epyc 7513 Firmware | before milanpi-sp3_1.0.0.7 |
| Amd | Epyc 7453 Firmware | before milanpi-sp3_1.0.0.7 |
| Amd | Epyc 74f3 Firmware | before milanpi-sp3_1.0.0.7 |
| Amd | Epyc 7443p Firmware | before milanpi-sp3_1.0.0.7 |
References
- NVD record
- CVE.org record
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028