High severity8.1NVD Advisory· Published Jan 26, 2016· Updated May 6, 2026

CVE-2016-1567

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."

Affected products

Tuxfamily/Chrony5 versions
cpe:2.3:a:tuxfamily:chrony:*:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:a:tuxfamily:chrony:*:*:*:*:*:*:*:*range: <=1.31.1
- cpe:2.3:a:tuxfamily:chrony:2.0:*:*:*:*:*:*:*
- cpe:2.3:a:tuxfamily:chrony:2.1:*:*:*:*:*:*:*
- cpe:2.3:a:tuxfamily:chrony:2.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:tuxfamily:chrony:2.2:*:*:*:*:*:*:*

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

lists.fedoraproject.org/pipermail/package-announce/2016-January/175969.htmlnvdPatch
www.talosintel.com/reports/TALOS-2016-0071/nvdExploit
chrony.tuxfamily.org/news.htmlnvdVendor Advisory
lists.fedoraproject.org/pipermail/package-announce/2016-February/176559.htmlnvd

News mentions

No linked articles in our index yet.

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