CVE-2016-1567
high
CVSS v3
8.1
CVSS v4 NEW
—
VIR risk
8.1
Description
chrony before 1.31.2 and 2.x before 2.2.1 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."
Predictions
Exploit likelihood
88%
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 |
|---|---|---|---|
| debian | bookworm | fixed | 2.2.1-1 |
| debian | bullseye | fixed | 2.2.1-1 |
| debian | forky | fixed | 2.2.1-1 |
| debian | sid | fixed | 2.2.1-1 |
| debian | trixie | fixed | 2.2.1-1 |
References
- http://chrony.tuxfamily.org/news.html#_20_jan_2016_chrony_2_2_1_and_chrony_1_31_2_released
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176559.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175969.html
- http://www.talosintel.com/reports/TALOS-2016-0071/
- https://security-tracker.debian.org/tracker/CVE-2016-1567
CWEs
CWE-254
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.