CVE-2016-5338 Memory corruption in n/a
Local guest administrators can crash QEMU or execute arbitrary code on the host via buffer issues in the ESP SCSI controller emulation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-5338?
CVE-2016-5338 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 14 Jun 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The (1) esp_reg_read and (2) esp_reg_write functions in hw/scsi/esp.c in QEMU allow local guest OS administrators to cause a denial of service (QEMU process crash) or execute arbitrary code on the QEMU host via vectors related to the information transfer buffer.
Which versions are affected by CVE-2016-5338?
It affects 3 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Qemu Qemu.
How do I fix CVE-2016-5338?
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-2016-5338 being exploited?
There is no known exploitation of CVE-2016-5338 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2016-5338, GHSA-g4j5-678q-qp7j, UBUNTU-CVE-2016-5338.