# Security update for MozillaThunderbird

Announcement ID: SUSE-SU-2025:02368-1  
Release Date: 2025-07-18T12:38:04Z  
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-2025-6424 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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-2025-6425 ( NVD ):  4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/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-2025-6426 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * 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-2025-6429 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/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
  * CVE-2025-6430 ( NVD ):  6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

  
Affected Products:

  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP6
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP6
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7
  * SUSE Linux Enterprise Workstation Extension 15 SP6
  * SUSE Linux Enterprise Workstation Extension 15 SP7
  * SUSE Package Hub 15 15-SP6
  * SUSE Package Hub 15 15-SP7

  
  
An update that solves five vulnerabilities can now be installed.

## Description:

This update for MozillaThunderbird fixes the following issues:

Update to Mozilla Thunderbird 128.12 (MFSA 2025-55, bsc#1244670):

  * CVE-2025-6424: Use-after-free in FontFaceSet (bmo#1966423)
  * CVE-2025-6425: The WebCompat WebExtension shipped exposed a persistent UUID
    (bmo#1717672)
  * CVE-2025-6426: No warning when opening executable terminal files on macOS
    (bmo#1964385)
  * CVE-2025-6429: Incorrect parsing of URLs could have allowed embedding of
    youtube.com (bmo#1970658)
  * CVE-2025-6430: Content-Disposition header ignored when a file is included in
    an embed or object tag (bmo#1971140)

## 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-SP6  
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP6-2025-2368=1

  * SUSE Package Hub 15 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2025-2368=1

  * SUSE Linux Enterprise Workstation Extension 15 SP6  
    zypper in -t patch SUSE-SLE-Product-WE-15-SP6-2025-2368=1

  * SUSE Linux Enterprise Workstation Extension 15 SP7  
    zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2025-2368=1

  * openSUSE Leap 15.6  
    zypper in -t patch openSUSE-SLE-15.6-2025-2368=1

## Package List:

  * SUSE Package Hub 15 15-SP6 (aarch64 ppc64le s390x)
    * MozillaThunderbird-translations-other-128.12.0-150200.8.227.2
    * MozillaThunderbird-debuginfo-128.12.0-150200.8.227.2
    * MozillaThunderbird-128.12.0-150200.8.227.2
    * MozillaThunderbird-debugsource-128.12.0-150200.8.227.2
    * MozillaThunderbird-translations-common-128.12.0-150200.8.227.2
  * SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x)
    * MozillaThunderbird-translations-other-128.12.0-150200.8.227.2
    * MozillaThunderbird-debuginfo-128.12.0-150200.8.227.2
    * MozillaThunderbird-128.12.0-150200.8.227.2
    * MozillaThunderbird-debugsource-128.12.0-150200.8.227.2
    * MozillaThunderbird-translations-common-128.12.0-150200.8.227.2
  * SUSE Linux Enterprise Workstation Extension 15 SP6 (x86_64)
    * MozillaThunderbird-translations-other-128.12.0-150200.8.227.2
    * MozillaThunderbird-debuginfo-128.12.0-150200.8.227.2
    * MozillaThunderbird-128.12.0-150200.8.227.2
    * MozillaThunderbird-debugsource-128.12.0-150200.8.227.2
    * MozillaThunderbird-translations-common-128.12.0-150200.8.227.2
  * SUSE Linux Enterprise Workstation Extension 15 SP7 (x86_64)
    * MozillaThunderbird-translations-other-128.12.0-150200.8.227.2
    * MozillaThunderbird-debuginfo-128.12.0-150200.8.227.2
    * MozillaThunderbird-128.12.0-150200.8.227.2
    * MozillaThunderbird-debugsource-128.12.0-150200.8.227.2
    * MozillaThunderbird-translations-common-128.12.0-150200.8.227.2
  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
    * MozillaThunderbird-translations-other-128.12.0-150200.8.227.2
    * MozillaThunderbird-debuginfo-128.12.0-150200.8.227.2
    * MozillaThunderbird-128.12.0-150200.8.227.2
    * MozillaThunderbird-debugsource-128.12.0-150200.8.227.2
    * MozillaThunderbird-translations-common-128.12.0-150200.8.227.2

## 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