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CVE-2023-3006
Published:May 31, 2023
Updated:May 18, 2026
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.
Affected Packages
linux-yocto (YOCTO):
Affected version(s) >=4.8 <4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68
Fix Suggestion:
Update to version 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68
linux-yocto (YOCTO):
Affected version(s) =4.9.3+gitAUTOINC+03a2d3f7f9_881cba95ae <4.10+gitAUTOINC+805ea440c7_b259a5d744
Fix Suggestion:
Update to version 4.10+gitAUTOINC+805ea440c7_b259a5d744
linux-libc-headers (YOCTO):
Affected version(s) >=5.4 <5.14
Fix Suggestion:
Update to version 5.14
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CVSS v4
Base Score:
6.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.5
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Removal of Sensitive Information Before Storage or Transfer
Sensitive Information in Resource Not Removed Before Reuse
EPSS
Base Score:
0.01