SUSE-SU-2026:23141-1: important: Security update for rrdtool

[SLE-SECURITY-UPDATES]

# Security update for rrdtool

Announcement ID: SUSE-SU-2026:23141-1  
Release Date: 2026-08-04T15:00:49Z  
Rating: important  
References:

  * bsc#1267243

  
Cross-References:

  * CVE-2026-43958

  
CVSS scores:

  * CVE-2026-43958 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-43958 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43958 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for rrdtool fixes the following issue:

  * CVE-2026-43958: stack buffer overflow in `rrdcached`
    `handle_request_create()` can lead to local privilege escalation via
    unbounded DS/RRA arguments (bsc#1267243).

## 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 for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-1428=1

## Package List:

  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * ruby-rrdtool-debuginfo-1.9.0-160000.4.1
    * python3-rrdtool-debuginfo-1.9.0-160000.4.1
    * perl-rrdtool-1.9.0-160000.4.1
    * rrdtool-devel-1.9.0-160000.4.1
    * ruby-rrdtool-1.9.0-160000.4.1
    * librrd8-debuginfo-1.9.0-160000.4.1
    * lua-rrdtool-1.9.0-160000.4.1
    * rrdtool-debugsource-1.9.0-160000.4.1
    * perl-rrdtool-debuginfo-1.9.0-160000.4.1
    * python3-rrdtool-1.9.0-160000.4.1
    * rrdtool-1.9.0-160000.4.1
    * tcl-rrdtool-1.9.0-160000.4.1
    * rrdtool-debuginfo-1.9.0-160000.4.1
    * tcl-rrdtool-debuginfo-1.9.0-160000.4.1
    * rrdtool-doc-1.9.0-160000.4.1
    * rrdtool-cached-1.9.0-160000.4.1
    * librrd8-1.9.0-160000.4.1
    * lua-rrdtool-debuginfo-1.9.0-160000.4.1
    * rrdtool-cached-debuginfo-1.9.0-160000.4.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-43958.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1267243

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