CVE-2023-34321

Dashboard / Vulnerabilities / CVE-2023-34321

CVE-2023-34321

Summary:

Details: 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.

References: http://xenbits.xen.org/xsa/advisory-437.html, https://xenbits.xenproject.org/xsa/advisory-437.html