SB2023052550 - Improper Handling of Length Parameter Inconsistency in ntpd-rs
Published: May 25, 2023 Updated: April 24, 2026
Security Bulletin ID
SB2023052550
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) Improper Handling of Length Parameter Inconsistency (CVE-ID: CVE-2023-33192)
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper handling of length parameter inconsistency in NTS cookie processing when handling NTP packets containing a shorter-than-expected cookie. A remote attacker can send a specially crafted NTP packet to cause a denial of service.
The issue affects server operation, including cases where the server is not configured to handle NTS packets.
Remediation
Install update from vendor's website.