Description
Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation, aka Spectre-BHB. An attacker can leverage the shared branch history in the Branch History Buffer (BHB) to influence mispredicted branches. Then, cache allocation can allow the attacker to obtain sensitive information.
Metrics
CVSS 3.1 5.6/10
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:NAffected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://www.openwall.com/lists/oss-security/2022/03/18/2Mailing List, Patch, Third Party Advisory
- https://developer.arm.com/support/arm-security-updatesVendor Advisory
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerabilityMitigation, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5173Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/03/18/2Mailing List, Patch, Third Party Advisory
- https://developer.arm.com/support/arm-security-updatesVendor Advisory
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerabilityMitigation, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5173Third Party Advisory
Timeline
- Published
- Mar 13, 2022
- Last modified
- Oct 8, 2026
- NVD status
- Modified