SUSE-SU-2026:0196-1: important: Security update for ovmf

[SLE-SECURITY-UPDATES]

# Security update for ovmf

Announcement ID: SUSE-SU-2026:0196-1  
Release Date: 2026-01-21T09:05:27Z  
Rating: important  
References:

  * bsc#1218881
  * bsc#1218882
  * bsc#1218883
  * bsc#1218884
  * bsc#1218885

  
Cross-References:

  * CVE-2023-45231
  * CVE-2023-45232
  * CVE-2023-45233
  * CVE-2023-45234
  * CVE-2023-45235

  
CVSS scores:

  * CVE-2023-45231 ( SUSE ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2023-45231 ( NVD ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2023-45231 ( NVD ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2023-45232 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-45232 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-45232 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-45233 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-45233 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-45233 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-45234 ( SUSE ):  8.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
  * CVE-2023-45234 ( NVD ):  8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-45234 ( NVD ):  8.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
  * CVE-2023-45235 ( SUSE ):  8.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
  * CVE-2023-45235 ( NVD ):  8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-45235 ( NVD ):  8.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H

  
Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

  
  
An update that solves five vulnerabilities can now be installed.

## Description:

This update for ovmf fixes the following issues:

  * CVE-2023-45231: Fixed out of bounds read when handling a ND Redirect message
    with truncated options (bsc#1218881).
  * CVE-2023-45232: Fixed infinite loop when parsing unknown options in the
    Destination Options header (bsc#1218882).
  * CVE-2023-45233: Fixed infinite loop when parsing a PadN option in the
    Destination Options header (bsc#1218883).
  * CVE-2023-45234: Fixed buffer overflow when processing DNS Servers option in
    a DHCPv6 Advertise message (bsc#1218884).
  * CVE-2023-45235: Fixed buffer overflow when handling Server ID option from a
    DHCPv6 proxy Advertise message (bsc#1218885).

## 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  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-196=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-196=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 x86_64)
    * ovmf-2017+git1510945757.b2662641d5-3.55.1
    * ovmf-tools-2017+git1510945757.b2662641d5-3.55.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (noarch)
    * qemu-uefi-aarch64-2017+git1510945757.b2662641d5-3.55.1
    * qemu-ovmf-x86_64-2017+git1510945757.b2662641d5-3.55.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * ovmf-2017+git1510945757.b2662641d5-3.55.1
    * ovmf-tools-2017+git1510945757.b2662641d5-3.55.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
    * qemu-ovmf-x86_64-2017+git1510945757.b2662641d5-3.55.1

## References:

  * https://www.suse.com/security/cve/CVE-2023-45231.html
  * https://www.suse.com/security/cve/CVE-2023-45232.html
  * https://www.suse.com/security/cve/CVE-2023-45233.html
  * https://www.suse.com/security/cve/CVE-2023-45234.html
  * https://www.suse.com/security/cve/CVE-2023-45235.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1218881
  * https://bugzilla.suse.com/show_bug.cgi?id=1218882
  * https://bugzilla.suse.com/show_bug.cgi?id=1218883
  * https://bugzilla.suse.com/show_bug.cgi?id=1218884
  * https://bugzilla.suse.com/show_bug.cgi?id=1218885

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.suse.com/pipermail/sle-security-updates/attachments/20260121/11b03b82/attachment.htm>