SB2021122224 - SUSE update for chrony
Published: December 22, 2021
Security Bulletin ID
SB2021122224
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Link following (CVE-ID: CVE-2020-14367)
CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CVSSv4: 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
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 update from vendor's website.