Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2016-2568

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.

Published

2017-02-13T18:59:00.393

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

3.4

Impact Score

6.4

Weaknesses

Type: Primary
CWE-116

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	freedesktop	polkit	*	Yes
Operating System	redhat	enterprise_linux	6.0	Yes
Operating System	redhat	enterprise_linux	7.0	Yes

References

http://www.openwall.com/lists/oss-security/2016/02/26/3 Mailing List, Third Party Advisory ([email protected])
https://access.redhat.com/security/cve/cve-2016-2568 Third Party Advisory ([email protected])
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816062 Mailing List, Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1300746 Issue Tracking, Third Party Advisory ([email protected])
https://ubuntu.com/security/CVE-2016-2568 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2016/02/26/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/security/cve/cve-2016-2568 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816062 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1300746 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://ubuntu.com/security/CVE-2016-2568 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)