CVE-2016-9603
CRITICAL9.9EPSS 0.63%qemu-kvm - security update
Published: 7/27/2018Modified: 12/3/2025
Also known as:ALPINE-CVE-2016-9603DEBIAN-CVE-2016-9603
Description
A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
Affected packages (5)
- Alpine/xenfrom 0, < 4.7.2-r0
- Debian/qemufrom 0, < 1:2.8+dfsg-4
- Debian/qemu-kvmfrom 0, < 1.1.2+dfsg-6+deb7u21
- Debian/xenfrom 0, < 4.4.0-1
- Debian/xenfrom 0, < 4.1.6.lts1-12
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.9 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |