SUSE-SU-2026:20769-1: moderate: Security update for ovmf

[SLE-SECURITY-UPDATES]

# Security update for ovmf

Announcement ID: SUSE-SU-2026:20769-1  
Release Date: 2026-03-20T11:57:43Z  
Rating: moderate  
References:

  * bsc#1252441

  
Cross-References:

  * CVE-2025-59438

  
CVSS scores:

  * CVE-2025-59438 ( SUSE ):  5.7
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2025-59438 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2025-59438 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

  
Affected Products:

  * SUSE Linux Micro 6.1

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for ovmf fixes the following issue:

  * CVE-2025-59438: mbedtls: padding oracle attack possible through timing of
    cipher error reporting (bsc#1252441).

## 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 6.1  
    zypper in -t patch SUSE-SLE-Micro-6.1-454=1

## Package List:

  * SUSE Linux Micro 6.1 (noarch)
    * qemu-ovmf-x86_64-202402-slfo.1.1_2.1
    * qemu-uefi-aarch64-202402-slfo.1.1_2.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-59438.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1252441

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