medium4.7
CVE-2022-25368
Spectre BHB is a variant of Spectre-v2 in which malicious code uses the shared branch history (stored in the CPU BHB) to influence mispredicted branches in the…
Impact
Spectre BHB is a variant of Spectre-v2 in which malicious code uses the shared branch history (stored in the CPU BHB) to influence mispredicted branches in the victim's hardware context. Speculation caused by these mispredicted branches can then potentially be used to cause cache allocation, which can then be used to infer information that should be protected.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Amperecomputing | Ampere Altra Max Firmware | All versions |
| Amperecomputing | Ampere Altra Firmware | All versions |
| Arm | Neoverse-E1 Firmware | All versions |
| Arm | Neoverse-V1 Firmware | All versions |
| Arm | Cortex-A57 Firmware | All versions |
| Arm | Cortex-A65 Firmware | All versions |
| Arm | Cortex-A65ae Firmware | All versions |
| Arm | Cortex-A72 Firmware | All versions |
| Arm | Cortex-A73 Firmware | All versions |
| Arm | Cortex-A75 Firmware | All versions |
| Arm | Cortex-A76 Firmware | All versions |
| Arm | Cortex-A76ae Firmware | All versions |
References
- NVD record
- CVE.org record
- https://amperecomputing.com/products/security-bulletins/impact-of-spectre-bhb-on-ampere.html
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23960
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/spectre-bhb
- https://amperecomputing.com/products/security-bulletins/impact-of-spectre-bhb-on-ampere.html
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23960
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/spectre-bhb