Permissions, Privileges, and Access Controls in Util-linux - CVE-2016-2779
Published: February 7, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU39729
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-2779
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: kernel.org
Affected software:
Util-linux
Util-linux
Detailed vulnerability description
The vulnerability allows a local authenticated user to execute arbitrary code.
runuser in util-linux allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.
How to mitigate CVE-2016-2779
Install update from vendor's website.