CVE Database›CVE-2016-1567

CVE-2016-1567

chrony: missing key check allows impersonation between authenticated peers (VU#357792)

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Severity

Low

Red Hat Product Security

3.6

CVSS 2.0

Review impact separately from score.

Published · January 20, 2016

Updated · November 21, 2025

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."

Statement

Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 2.0 · 3.6
AV:N/AC:H/Au:S/C:N/I:P/A:P

CWE-304 · Missing Critical Step in Authentication