#VU46134 Link following in chrony - CVE-2020-14367

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Main Vulnerability Database Vulnerabilities #VU46134

#VU46134 Link following in chrony - CVE-2020-14367

Published: August 31, 2020


Vulnerability identifier: #VU46134
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-14367
CWE-ID: CWE-59
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
chrony
Software vendor:
mlichvar

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a symlink following issue when creating the PID file under the "/var/run/chrony" folder. A remote authenticated attacker can 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 (DoS).


Remediation

Install updates from vendor's website.

External links