CVE-2019-18389: Debian Linux

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

A heap-based buffer overflow in the vrend_renderer_transfer_write_iov function in vrend_renderer.c in virglrenderer through 0.8.0 allows guest OS users to cause a denial of service, or QEMU guest-to-host escape and code execution, via VIRGL_CCMD_RESOURCE_INLINE_WRITE commands.

Affected products

• Debian Debian Linux: version 10.0 only
• Opensuse Leap: version 15.1 only
• Red Hat Enterprise Linux: version 8.0 only
• Virglrenderer Project Virglrenderer: up to and including 0.8.0

Published 2019-12-23. Last modified 2026-06-17.