CVE-2015-3214 Memory corruption in n/a
Guest OS users can execute arbitrary code on the host by exploiting an index error in the i8254 timer 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-2015-3214?
CVE-2015-3214 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 31 Aug 2015. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The pit_ioport_read in i8254.c in the Linux kernel before 2.6.33 and QEMU before 2.3.1 does not distinguish between read lengths and write lengths, which might allow guest OS users to execute arbitrary code on the host OS by triggering use of an invalid index.
Weakness: CWE-119
Which versions are affected by CVE-2015-3214?
It affects 19 products.
Products include Arista Eos, Debian Debian Linux, Lenovo Emc Px12-400r Ivx, Lenovo Emc Px12-450r Ivx, Linux kernel, Qemu Qemu and 13 more.
How do I fix CVE-2015-3214?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2015-3214 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2015-3214 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2015-3214, GHSA-7g3q-j68f-2fw5, UBUNTU-CVE-2015-3214.