Vulnerabilities > CVE-2020-27821 - Out-of-bounds Write vulnerability in multiple products

Summary

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

Vulnerable Configurations

Common Weakness Enumeration (CWE)

• CWE-787 - Out-of-bounds Write

References