CVE-2017-16845 Memory corruption in n/a
A guest can trigger out-of-bounds access in QEMU's PS2 input device during migration, potentially leading to code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-16845?
CVE-2017-16845 is a critical memory corruption vulnerability in Canonical Ubuntu Linux, published on 17 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access.
Weakness: CWE-20
Which versions are affected by CVE-2017-16845?
It affects 3 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Qemu Qemu.
How do I fix CVE-2017-16845?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2017-16845 being exploited?
There is no known exploitation of CVE-2017-16845 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2017-16845, GHSA-3whx-jj33-9r95, UBUNTU-CVE-2017-16845.