CVE-2023-34320

arm: Guests can trigger a deadlock on Cortex-A77

Description

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.

Remediation

Workaround:

  • There are no known mitigations.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Third-Party Advisory xenproject.org
Affected: Xen Xen
Published at:
Updated at:

References

Link Tags
https://xenbits.xenproject.org/xsa/advisory-436.html third party advisory

Frequently Asked Questions

What is the severity of CVE-2023-34320?
CVE-2023-34320 has been scored as a medium severity vulnerability.
How to fix CVE-2023-34320?
As a workaround for remediating CVE-2023-34320: There are no known mitigations.
Is CVE-2023-34320 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-34320 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-34320?
CVE-2023-34320 affects Xen Xen.
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