SB2017020704 - Permissions, Privileges, and Access Controls in kernel Util-linux
Published: February 7, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017020704
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2016-2779)
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.
Remediation
Install update from vendor's website.