CVE-2016-2853 Privilege escalation in n/a
Local attackers can gain privileges by mounting an aufs filesystem over FUSE and executing a crafted setuid program due to improper namespace restrictions.
- 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-2016-2853?
CVE-2016-2853 is a high-severity vulnerability in Linux kernel, published on 2 May 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.
Weakness: CWE-269
Which versions are affected by CVE-2016-2853?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2016-2853?
Apply the vendor's patch.
Is CVE-2016-2853 being exploited?
There is no known exploitation of CVE-2016-2853 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2016-2853, GHSA-xrmj-c7vj-9c4m, UBUNTU-CVE-2016-2853.