CVE-2023-34321

Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes (such as the ones during scrubbing) have reached memory before handing over the page to a guest. Unfortunately, the arithmetics in the helpers can overflow and would then result to skip the cache cleaning/invalidation. Therefore there is no guarantee when all the writes will reach the memory.

CVSS v3 3.3 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://xenbits.xenproject.org/xsa/advisory-437.html	Patch Vendor Advisory
http://xenbits.xen.org/xsa/advisory-437.html
https://xenbits.xenproject.org/xsa/advisory-437.html	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*

History

04 Nov 2025, 20:16

Type	Values Removed	Values Added
References		() http://xenbits.xen.org/xsa/advisory-437.html -

Information

Published : 2024-01-05 17:15

Updated : 2025-11-04 20:16

NVD link : CVE-2023-34321

Mitre link : CVE-2023-34321

CVE.ORG link : CVE-2023-34321

JSON object : View

Products Affected

xen

xen

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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