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.

CVSS v3 7.8 HIGH
CVSS v2.0 4.4 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.1 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

4.4^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.4 / Impact : 6.4

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://www.openwall.com/lists/oss-security/2016/02/26/3	Mailing List Third Party Advisory
https://access.redhat.com/security/cve/cve-2016-2568	Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816062	Mailing List Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1300746	Issue Tracking Third Party Advisory
https://ubuntu.com/security/CVE-2016-2568	Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/02/26/3	Mailing List Third Party Advisory
https://access.redhat.com/security/cve/cve-2016-2568	Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816062	Mailing List Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1300746	Issue Tracking Third Party Advisory
https://ubuntu.com/security/CVE-2016-2568	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:freedesktop:polkit:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*

History

No history.

Information

Published : 2017-02-13 18:59

Updated : 2025-04-20 01:37

NVD link : CVE-2016-2568

Mitre link : CVE-2016-2568

CVE.ORG link : CVE-2016-2568

JSON object : View

Products Affected

redhat

enterprise_linux

freedesktop

polkit

CWE

CWE-116

Improper Encoding or Escaping of Output

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