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

2023-12-0820:54:06

XEN

www.cve.org

cve-2023-34320

cortex-a77

deadlock

erratum 1508412

device memory

non-cacheable memory

par_el1

AI Score

5.7

Confidence

High

EPSS

0.001

Percentile

29.1%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "unknown",
    "product": "Xen",
    "vendor": "Xen",
    "versions": [
      {
        "status": "unknown",
        "version": "consult Xen advisory XSA-436"
      }
    ]
  }
]