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.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2020-08-24T14:07:19

Updated: 2020-09-09T13:06:31

Reserved: 2020-06-17T00:00:00


Link: CVE-2020-14367

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2020-08-24T15:15:13.147

Modified: 2023-11-07T03:17:11.597


Link: CVE-2020-14367

JSON object: View

cve-icon Redhat Information

No data.

CWE