NTP: Multiple Vulnerabilities — GLSA 202507-05

Multiple vulnerabilities have been discovered in NTP, the worst of which could lead to the execution of arbitrary code.

Affected packages

Background

NTP contains software for the Network Time Protocol.

Description

Multiple vulnerabilities have been discovered in NTP. Please review the CVE identifiers referenced below for details.

Impact

The first four of these CVEs affect a function in libntp that is only used by ntpq, but not by ntpd. The last CVE affects the driver for a hardware clock (GPS receiver), so ntpd might be vulnerable to manipulated devices of that type, but not to remote attacks.

Workaround

There is no known workaround at this time.

Resolution

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-misc/ntp-4.2.8_p16"
 

References

• CVE-2023-26551
• CVE-2023-26552
• CVE-2023-26553
• CVE-2023-26554
• CVE-2023-26555

Release date
July 08, 2025

Latest revision
July 08, 2025: 1

Severity
normal

Exploitable
remote

Bugzilla entries

• 904337