arm: Guests can trigger a deadlock on Cortex-A77
CVE-2023-34320

5.5MEDIUM

Key Information:

Vendor

Xen Project
Status
Xen
Vendor
CVE Published:
8 December 2023

What is 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 register read of the Physical Address Register (PAR_EL1) in close proximity.

Affected Version(s)

Xen consult Xen advisory XSA-436

References

https://xenbits.xenproject.org/xsa/advisory-436.html

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.