Detections
Analytics

CVE-2016-2568

high

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.

References

https://ubuntu.com/security/CVE-2016-2568

https://bugzilla.redhat.com/show_bug.cgi?id=1300746

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816062

https://access.redhat.com/security/cve/cve-2016-2568

http://www.openwall.com/lists/oss-security/2016/02/26/3

Details

Source: Mitre, NVD

Published: 2017-02-13

Updated: 2025-04-20

Risk Information

CVSS v2

Base Score: 4.4

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00148