GLSA 202507-05: NTP: Multiple Vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	NTP: Multiple Vulnerabilities
Date:	07/08/2025
Bugs:	#904337
ID:	202507-05

Synopsis

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

Background

NTP contains software for the Network Time Protocol.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-misc/ntp	< 4.2.8_p16	>= 4.2.8_p16	All supported architectures

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

All NTP users should upgrade to the latest version:

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

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202507-05.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.