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.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=815922
http://www.openwall.com/lists/oss-security/2016/02/27/2
http://www.openwall.com/lists/oss-security/2016/02/27/1
Source: Mitre, NVD
Published: 2017-02-07
Updated: 2024-11-21
Base Score: 7.2
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H