CVE-2016-2568 Privilege escalation in n/a
Local attackers can escalate privileges to the parent session by exploiting a TIOCSTI ioctl vulnerability in the pkexec utility.
- 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-2016-2568?
CVE-2016-2568 is a high-severity vulnerability in Redhat Enterprise Linux, published on 13 Feb 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.
Weakness: CWE-116
Which versions are affected by CVE-2016-2568?
It affects 2 products.
Products include Freedesktop Polkit, Redhat Enterprise Linux.
How do I fix CVE-2016-2568?
Apply the vendor's patch.
Is CVE-2016-2568 being exploited?
There is no known exploitation of CVE-2016-2568 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux
Sources
Also known as AZL-35109, AZL-6800, DEBIAN-CVE-2016-2568, GHSA-8vgc-x7hv-3g84, UBUNTU-CVE-2016-2568.