SUSE-SU-2025:02123-1: important: Security update for MozillaFirefox

[SLE-UPDATES]

# Security update for MozillaFirefox

Announcement ID: SUSE-SU-2025:02123-1  
Release Date: 2025-06-26T08:51:15Z  
Rating: important  
References:

  * bsc#1244670

  
Cross-References:

  * CVE-2025-6424
  * CVE-2025-6425
  * CVE-2025-6426
  * CVE-2025-6429
  * CVE-2025-6430

  
CVSS scores:

  * CVE-2025-6424 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-6424 ( SUSE ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2025-6425 ( SUSE ):  5.3
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2025-6425 ( SUSE ):  5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
  * CVE-2025-6426 ( SUSE ):  5.3
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:L
  * CVE-2025-6426 ( SUSE ):  8.2 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L
  * CVE-2025-6429 ( SUSE ):  5.3
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2025-6429 ( SUSE ):  4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
  * CVE-2025-6430 ( SUSE ):  5.3
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2025-6430 ( SUSE ):  6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

  
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 MozillaFirefox fixes the following issues:

Update to MozillaFirefox 128.12.0 (MFSA 2025-23, bsc#1244670):

  * CVE-2025-6424: Use-after-free in FontFaceSet
  * CVE-2025-6425: The WebCompat WebExtension shipped with Firefox exposed a
    persistent UUID
  * CVE-2025-6426: No warning when opening executable terminal files on macOS
  * CVE-2025-6429: Incorrect parsing of URLs could have allowed embedding of
    youtube.com
  * CVE-2025-6430: Content-Disposition header ignored when a file is included in
    an embed or object tag

## 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 Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2025-2123=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2025-2123=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * MozillaFirefox-translations-common-128.12.0-112.265.1
    * MozillaFirefox-debugsource-128.12.0-112.265.1
    * MozillaFirefox-debuginfo-128.12.0-112.265.1
    * MozillaFirefox-128.12.0-112.265.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
    * MozillaFirefox-devel-128.12.0-112.265.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * MozillaFirefox-translations-common-128.12.0-112.265.1
    * MozillaFirefox-debugsource-128.12.0-112.265.1
    * MozillaFirefox-debuginfo-128.12.0-112.265.1
    * MozillaFirefox-128.12.0-112.265.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (noarch)
    * MozillaFirefox-devel-128.12.0-112.265.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-6424.html
  * https://www.suse.com/security/cve/CVE-2025-6425.html
  * https://www.suse.com/security/cve/CVE-2025-6426.html
  * https://www.suse.com/security/cve/CVE-2025-6429.html
  * https://www.suse.com/security/cve/CVE-2025-6430.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1244670

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