CVE-2022-23960

medium

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.

References

https://www.debian.org/security/2022/dsa-5173

https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html

http://www.openwall.com/lists/oss-security/2022/03/18/2

https://www.tenable.com/cyber-exposure/tenable-2022-threat-landscape-report

https://developer.arm.com/Arm%20Security%20Center/Spectre-BHB

https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability

https://developer.arm.com/support/arm-security-updates

Details

Source: Mitre, NVD

Published: 2022-03-13

Updated: 2024-11-21

Named Vulnerability: Spectre-BHB

Risk Information

CVSS v2

Base Score: 1.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 5.6

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.00109