Vulnerabilities > CVE-2021-3638 - Out-of-bounds Write vulnerability in multiple products

Summary

An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.

Vulnerable Configurations

Common Weakness Enumeration (CWE)

• CWE-787 - Out-of-bounds Write

References