The IRQ setup in Xen 4.2.x and 4.3.x, when using device passthrough
and configured to support a large number of CPUs, frees certain memory
that may still be intended for use, which allows local guest
administrators to cause a denial of service (memory corruption and
hypervisor crash) and possibly execute arbitrary code via vectors
related to an out-of-memory error that triggers a (1) use-after-free
or (2) double free.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
Disclaimer: The entry creation date may reflect when
the CVE-ID was allocated or reserved, and does not
necessarily indicate when this vulnerability was
discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
This is an entry on the CVE
list, which standardizes names for security