CVE-2023-3006
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk18th percentile - higher than 18% of all known CVEs
Summary
A known cache speculation vulnerability, known as Branch History Injection (BHI) or Spectre-BHB, affects the new hardware AmpereOne. Spectre-BHB uses shared branch history to influence mispredicted branches within the victim's hardware context.
Risk Assessment
This vulnerability can lead to obtaining information that should not be accessible, posing a serious threat to data security within the organization.
Recommendation
It is recommended to monitor security updates and implement appropriate patches for AmpereOne hardware to minimize the risk associated with this vulnerability.
Original NVD description (English source)
A known cache speculation vulnerability, known as Branch History Injection (BHI) or Spectre-BHB, becomes actual again for the new hw AmpereOne. Spectre-BHB is similar to Spectre v2, except that malicious code uses the shared branch history (stored in the CPU Branch History Buffer, or BHB) to influence mispredicted branches within the victim's hardware context. Once that occurs, speculation caused by the mispredicted branches can cause cache allocation. This issue leads to obtaining information that should not be accessible.