CVE-2016-2568

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Third-Party Advisory openwall.com Third-Party Advisory redhat.com Third-Party Advisory debian.org Third-Party Advisory redhat.com Third-Party Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2016/02/26/3 third party advisory mailing list
https://bugzilla.redhat.com/show_bug.cgi?id=1300746 third party advisory issue tracking
https://access.redhat.com/security/cve/cve-2016-2568 third party advisory
https://ubuntu.com/security/CVE-2016-2568 third party advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816062 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2016-2568?
CVE-2016-2568 has been scored as a high severity vulnerability.
How to fix CVE-2016-2568?
To fix CVE-2016-2568, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2568 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2568 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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