Vulnerability in Arm Cortex-a77
CVE-2023-34320
Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412 where software, under certain circumstances, could deadlock a core due to the execution of either a load to device or non-cacheable memory, and either a store exclusive or re…
EPSS: 0.002 (12.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Arm Cortex-a77
- Arm Cortex-a77_firmware — versions r0p0, r1p0
- Xen — versions consult Xen advisory XSA-436
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@xen.org (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-34320?
- CVE-2023-34320 is a medium-severity vulnerability in Arm Cortex-a77, classified under Improper Locking. CVSS score: 5.5/10. Published 2023-12-08.
- How severe is CVE-2023-34320?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-34320 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.