CVE-2020-12114 Race condition in n/a
Local attackers can trigger a kernel panic via a race condition in pivot_root, causing denial of service on affected Linux systems.
- 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-2020-12114?
CVE-2020-12114 is a medium-severity vulnerability in Linux kernel, published on 4 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A pivot_root race condition in fs/namespace.c in the Linux kernel 4.4.x before 4.4.221, 4.9.x before 4.9.221, 4.14.x before 4.14.178, 4.19.x before 4.19.119, and 5.x before 5.3 allows local users to cause a denial of service (panic) by corrupting a mountpoint reference counter.
Weakness: CWE-362
Which versions are affected by CVE-2020-12114?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2020-12114?
Apply the vendor's patch.
Is CVE-2020-12114 being exploited?
There is no known exploitation of CVE-2020-12114 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2020-12114, GHSA-f2c7-c2h9-mxmq, UBUNTU-CVE-2020-12114.