CVE-2023-46837

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. This undefined behavior was meant to be addressed by XSA-437, but the approach was not sufficient.
References
Link Resource
https://xenbits.xenproject.org/xsa/advisory-447.html Patch Vendor Advisory
Configurations

Configuration 1 (hide)

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

Information

Published : 2024-01-05 17:15

Updated : 2024-01-11 17:08


NVD link : CVE-2023-46837

Mitre link : CVE-2023-46837


JSON object : View

Products Affected

xen

  • xen
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer