CVE-2016-2568
high
CVSS v3
7.8
CVSS v4 NEW
—
VIR risk
7.8
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.
Predictions
Exploit likelihood
75%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| rhel | 6.0 | affected | |
| rhel | 7.0 | affected | |
| debian | bookworm | affected | |
| debian | bullseye | affected | |
| debian | forky | fixed | 123-1 |
| debian | sid | fixed | 123-1 |
| debian | trixie | fixed | 123-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| freedesktop | polkit | | |
References
- https://www.suse.com/security/cve/CVE-2016-2568.html
- 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://security-tracker.debian.org/tracker/CVE-2016-2568
CWEs
CWE-116
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.