Vulnerability in Arm Cortex-A57
CVE-2022-23960
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (40.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Public proof-of-concept exploits
References
- developer.arm.com/support/arm-security-updates/speculative-processor-vulnerabil… (Patch, Mitigation, Vendor Advisory)
- developer.arm.com/support/arm-security-updates (Vendor Advisory)
- www.openwall.com/lists/oss-security/2022/03/18/2 (mailing-list, Patch, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/07/msg00000.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2022/dsa-5173 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-23960?
- CVE-2022-23960 is a medium-severity vulnerability in Arm Cortex-A57. CVSS score: 5.6/10. Published 2022-03-13.
- How severe is CVE-2022-23960?
- Medium severity. CVSS v3 base score is 5.6 out of 10.
- Is CVE-2022-23960 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.