SUSE alert SUSE-SU-2026:20311-1 (iperf)

From:
             
 
SLE-SECURITY-UPDATES <null@suse.de>
To:
             
 
sle-security-updates@lists.suse.com
Subject:
             
 
SUSE-SU-2026:20311-1: important: Security update for iperf
Date:
             
 
Fri, 13 Feb 2026 21:45:59 -0000
Message-ID:
             
 
<177101915967.18695.13103143544349495841@smelt2.prg2.suse.org>


# Security update for iperf

Announcement ID: SUSE-SU-2026:20311-1  
Release Date: 2025-09-05T12:57:05Z  
Rating: important  
References:

  * bsc#1247519
  * bsc#1247520
  * bsc#1247522

  
Cross-References:

  * CVE-2025-54349
  * CVE-2025-54350
  * CVE-2025-54351

  
CVSS scores:

  * CVE-2025-54349 ( SUSE ):  5.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
  * CVE-2025-54349 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
  * CVE-2025-54349 ( NVD ):  10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
  * CVE-2025-54350 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2025-54350 ( NVD ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-54350 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-54351 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2025-54351 ( NVD ):  8.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
  * CVE-2025-54351 ( NVD ):  10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Micro 6.0
  * SUSE Linux Micro Extras 6.0

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for iperf fixes the following issues:

Update to 3.19.1:

  * CVE-2025-54349: Fixed off-by-one error and resultant heap-based buffer
    overflow (bsc#1247519).
  * CVE-2025-54350: Fixed Base64Decode assertion failure and application exit
    upon a malformed authentication attempt (bsc#1247520).
  * CVE-2025-54351: Fixed buffer overflow when --skip-rx-copy is used (for
    MSG_TRUNC in recv) (bsc#1247522).

## 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 Micro Extras 6.0  
    zypper in -t patch SUSE-SLE-Micro-Extras-6.0-448=1

## Package List:

  * SUSE Linux Micro Extras 6.0 (aarch64 ppc64le s390x x86_64)
    * libiperf0-debuginfo-3.19.1-1.1
    * iperf-3.19.1-1.1
    * libiperf0-3.19.1-1.1
    * iperf-debuginfo-3.19.1-1.1
    * iperf-debugsource-3.19.1-1.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-54349.html
  * https://www.suse.com/security/cve/CVE-2025-54350.html
  * https://www.suse.com/security/cve/CVE-2025-54351.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1247519
  * https://bugzilla.suse.com/show_bug.cgi?id=1247520
  * https://bugzilla.suse.com/show_bug.cgi?id=1247522



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