CVE-2019-18389

Name of the Vulnerable Software and Affected Versions Virglrenderer versions through 0.8.0

Description A heap-based buffer overflow issue in the vrend renderer transfer write iov function allows guest OS users to cause a denial of service or achieve QEMU guest-to-host escape and code execution via VIRGL CCMD RESOURCE INLINE WRITE commands. This can potentially lead to unauthorized access to confidential data, disruption of data integrity, and service disruption.

Recommendations For versions through 0.8.0, update to a version later than 0.8.0 to resolve the issue. As a temporary workaround, consider restricting the use of the vrend renderer transfer write iov function until a patch is available. Avoid using VIRGL CCMD RESOURCE INLINE WRITE commands in the affected API endpoint until the issue is resolved.