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Link Following The advisory has been revoked - it doesn't affect any version of package chrony  (opens in a new tab)

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  • Snyk IDSNYK-CENTOS8-CHRONY-1952470
  • published26 Jul 2021
  • disclosed19 Aug 2020
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Introduced: 19 Aug 2020

CVE-2020-14367  (opens in a new tab)
CWE-59  (opens in a new tab)
CWE-22  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream chrony package and not the chrony package as distributed by Centos.

A flaw was found in chrony versions before 3.5.1 when creating the PID file under the /var/run/chrony folder. The file is created during chronyd startup while still running as the root user, and when it's opened for writing, chronyd does not check for an existing symbolic link with the same file name. This flaw allows an attacker with privileged access to create a symlink with the default PID file name pointing to any destination file in the system, resulting in data loss and a denial of service due to the path traversal.