Security update for ovmf

Announcement ID: SUSE-SU-2026:1952-1
Release Date: 2026-05-18T07:52:56Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2026-25833 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-25833 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-25833 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-25834 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
  • CVE-2026-25834 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
  • CVE-2026-25834 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  • CVE-2026-25835 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  • CVE-2026-25835 ( SUSE ): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  • CVE-2026-25835 ( NVD ): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  • CVE-2026-34874 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-34874 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-34874 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • Server Applications Module 15-SP7
  • SUSE Linux Enterprise Desktop 15 SP7
  • SUSE Linux Enterprise Real Time 15 SP7
  • SUSE Linux Enterprise Server 15 SP7
  • SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • SUSE Package Hub 15 15-SP7

An update that solves four vulnerabilities can now be installed.

Description:

This update for ovmf fixes the following issues

  • CVE-2026-25833: mbedtls: buffer underflow in x509_inet_pton_ipv6() (bsc#1261476).
  • CVE-2026-25834: mbedtls: Algorithm downgrade vulnerability (bsc#1261477).
  • CVE-2026-25835: mbedtls: PSA random generator cloning (bsc#1261478).
  • CVE-2026-34874: mbedtls: NULL pointer dereference when setting a distinguished name (bsc#1261469).

Changes for ovmf:

  • Update mbedtls to 3.6.6.

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 Package Hub 15 15-SP7
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-1952=1
  • Server Applications Module 15-SP7
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2026-1952=1

Package List:

  • SUSE Package Hub 15 15-SP7 (noarch)
    • qemu-uefi-aarch64-202408-150700.3.18.1
    • qemu-ovmf-x86_64-202408-150700.3.18.1
    • qemu-uefi-aarch32-202408-150700.3.18.1
  • SUSE Package Hub 15 15-SP7 (x86_64)
    • qemu-ovmf-x86_64-debug-202408-150700.3.18.1
  • Server Applications Module 15-SP7 (aarch64 x86_64)
    • ovmf-202408-150700.3.18.1
    • ovmf-tools-202408-150700.3.18.1
  • Server Applications Module 15-SP7 (noarch)
    • qemu-ovmf-x86_64-202408-150700.3.18.1
    • qemu-uefi-aarch64-202408-150700.3.18.1

References: