SB20230821163 - Fedora 37 update for ntpsec
Published: August 21, 2023
Security Bulletin ID
SB20230821163
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use of uninitialized resource (CVE-ID: CVE-2023-4012)
CWE-ID: CWE-908 - Use of Uninitialized Resource
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to usage of uninitialized resources in ntpd/nts_cookie.c when processing NTS requests in a server with disabled NTS support. A remote attacker can send an NTS-enabled client request (mode 3) to the server and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.