ELA-1270-1 ntp security update

multiple vulnerabilities

2024-12-11
Packagentp
Version1:4.2.8p12+dfsg-4+deb10u1 (buster)
Related CVEs CVE-2020-11868 CVE-2020-15025 CVE-2023-26555


Multiple vulnerabilities were discovered in ntp, a Network Time Protocol daemon and set of utility programs.

CVE-2020-11868

It was possible for an off-path attacker to block unauthenticated synchronisation via a server mode packet with a spoofed source IP address.

CVE-2020-15025

A remote attacker could cause a denial-of-service because of a memory leak in situations where a CMAC key is used and associated with a CMAC algorithm in the ntp.keys file.

CVE-2023-26555

The clock driver for the Trimble Palisade GPS timing receiver contained an out-of-bounds write, which could cause memory corruption or a crash.



For Debian 10 buster, these problems have been fixed in version 1:4.2.8p12+dfsg-4+deb10u1.

We recommend that you upgrade your ntp packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.