CVE-2017-18030 Denial of service in n/a
Local privileged guest users can crash the QEMU process via out-of-bounds array access in the Cirrus VGA emulation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-18030?
CVE-2017-18030 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 23 Jan 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The cirrus_invalidate_region function in hw/display/cirrus_vga.c in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds array access and QEMU process crash) via vectors related to negative pitch.
Weakness: CWE-125
Which versions are affected by CVE-2017-18030?
It affects 2 products.
Products include Debian Debian Linux, Qemu Qemu.
How do I fix CVE-2017-18030?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-18030 being exploited?
There is no known exploitation of CVE-2017-18030 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2017-18030, GHSA-8v4h-p9x9-5mm5.