CVE-2016-2568
First published: Thu Jan 21 2016(Updated: )
It was reported that when executing a program via "pkexec --user nonpriv program", the nonpriv session can escape to the parent session by using the TIOCSTI ioctl to push characters into the terminal's input buffer, allowing privilege escalation. Original bug report (contains reproducer): <a class="bz_bug_link bz_status_CLOSED bz_closed bz_public " title="CLOSED ERRATA - pkexec tty hijacking via TIOCSTI ioctl" href="show_bug.cgi?id=1299955">https://bugzilla.redhat.com/show_bug.cgi?id=1299955</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Freedesktop Polkit | ||
| Redhat Enterprise Linux | =6.0 | |
| Redhat Enterprise Linux | =7.0 | |
| debian/policykit-1 | <=0.105-31+deb11u1<=122-3<=125-2 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2016/02/26/3
- https://access.redhat.com/security/cve/cve-2016-2568
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816062
- https://bugzilla.redhat.com/show_bug.cgi?id=1300746
- https://ubuntu.com/security/CVE-2016-2568
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1299955
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1300747
- http://seclists.org/oss-sec/2016/q1/443
- https://access.redhat.com/security/updates/classification/
- https://patchwork.kernel.org/patch/9753697/
- https://security-tracker.debian.org/tracker/CVE-2016-2568
- https://bugzilla.redhat.com/show_bug.cgi?id=1299955
- https://launchpad.net/bugs/cve/CVE-2016-2568
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2568
- https://nvd.nist.gov/vuln/detail/CVE-2016-2568
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