Security update for chrony

Announcement ID: SUSE-SU-2025:3868-1
Release Date: 2025-10-30T13:44:59Z
Rating: moderate
References:
Affected Products:
  • SUSE Linux Enterprise Server 12 SP5
  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  • SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that has four security fixes can now be installed.

Description:

This update for chrony fixes the following issues:

Security issues fixed: - Race condition during socket creation by chronyc allows privilege escalation from user chrony to root (bsc#1246544).

Other issues fixed: - Improve connection retry intervals when facing NTS-KE related issues (bsc#1213551). * nts: use shorter NTS-KE retry interval when network is down. * ntp: don't adjust poll interval when waiting for NTS-KE.

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2025-3868=1

Package List:

  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    • chrony-4.1-5.12.1
    • chrony-debuginfo-4.1-5.12.1
    • chrony-debugsource-4.1-5.12.1

References: