SUSE-SU-2025:3868-1: moderate: Security update for chrony

[SLE-SECURITY-UPDATES]

# Security update for chrony

Announcement ID: SUSE-SU-2025:3868-1  
Release Date: 2025-10-30T13:44:59Z  
Rating: moderate  
References:

  * bsc#1194220
  * bsc#1194229
  * bsc#1213551
  * bsc#1246544

  
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:

  * https://bugzilla.suse.com/show_bug.cgi?id=1194220
  * https://bugzilla.suse.com/show_bug.cgi?id=1194229
  * https://bugzilla.suse.com/show_bug.cgi?id=1213551
  * https://bugzilla.suse.com/show_bug.cgi?id=1246544

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