medium5.6
CVE-2021-46778
Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that us…
Impact
Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Amd | Athlon 3050ge Firmware | All versions |
| Amd | Athlon 3150g Firmware | All versions |
| Amd | Athlon 3150ge Firmware | All versions |
| Amd | Epyc 7001 Firmware | All versions |
| Amd | Epyc 7002 Firmware | All versions |
| Amd | Epyc 7003 Firmware | All versions |
| Amd | Epyc 7232p Firmware | All versions |
| Amd | Epyc 7251 Firmware | All versions |
| Amd | Epyc 7252 Firmware | All versions |
| Amd | Epyc 7261 Firmware | All versions |
| Amd | Epyc 7262 Firmware | All versions |
| Amd | Epyc 7272 Firmware | All versions |