# Security update for MozillaFirefox

Announcement ID: SUSE-SU-2025:0056-1  
Release Date: 2025-01-09T16:59:18Z  
Rating: important  
References:

  * bsc#1234991

  
Cross-References:

  * CVE-2025-0237
  * CVE-2025-0238
  * CVE-2025-0239
  * CVE-2025-0240
  * CVE-2025-0241
  * CVE-2025-0242
  * CVE-2025-0243

  
CVSS scores:

  * CVE-2025-0237 ( SUSE ):  5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
  * CVE-2025-0237 ( NVD ):  5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
  * CVE-2025-0238 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2025-0238 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2025-0239 ( SUSE ):  4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2025-0239 ( NVD ):  4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2025-0240 ( SUSE ):  4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2025-0240 ( NVD ):  4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2025-0242 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2025-0242 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2025-0243 ( SUSE ):  5.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2025-0243 ( NVD ):  5.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

  
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 seven vulnerabilities can now be installed.

## Description:

This update for MozillaFirefox fixes the following issues:

  * Firefox Extended Support Release 128.6.0 ESR
  * Fixed: Various security fixes.

MFSA 2025-02 (bsc#1234991) * CVE-2025-0237 (bmo#1915257) WebChannel APIs
susceptible to confused deputy attack * CVE-2025-0238 (bmo#1915535) Use-after-
free when breaking lines * CVE-2025-0239 (bmo#1929156) Alt-Svc ALPN validation
failure when redirected * CVE-2025-0240 (bmo#1929623) Compartment mismatch when
parsing JavaScript JSON module * CVE-2025-0241 (bmo#1933023) Memory corruption
when using JavaScript Text Segmentation * CVE-2025-0242 (bmo#1874523,
bmo#1926454, bmo#1931873, bmo#1932169) Memory safety bugs fixed in Firefox 134,
Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and
Thunderbird 128.6 * CVE-2025-0243 (bmo#1827142, bmo#1932783) Memory safety bugs
fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6

  * Firefox Extended Support Release 128.5.2 ESR
  * Fixed: Fixed a crash experienced by Windows users with Qihoo 360 Total
    Security Antivirus software installed (bmo#1934258)

## 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-2025-56=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2025-56=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * MozillaFirefox-128.6.0-112.243.1
    * MozillaFirefox-debuginfo-128.6.0-112.243.1
    * MozillaFirefox-translations-common-128.6.0-112.243.1
    * MozillaFirefox-debugsource-128.6.0-112.243.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (noarch)
    * MozillaFirefox-devel-128.6.0-112.243.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * MozillaFirefox-128.6.0-112.243.1
    * MozillaFirefox-debuginfo-128.6.0-112.243.1
    * MozillaFirefox-translations-common-128.6.0-112.243.1
    * MozillaFirefox-debugsource-128.6.0-112.243.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
    * MozillaFirefox-devel-128.6.0-112.243.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-0237.html
  * https://www.suse.com/security/cve/CVE-2025-0238.html
  * https://www.suse.com/security/cve/CVE-2025-0239.html
  * https://www.suse.com/security/cve/CVE-2025-0240.html
  * https://www.suse.com/security/cve/CVE-2025-0241.html
  * https://www.suse.com/security/cve/CVE-2025-0242.html
  * https://www.suse.com/security/cve/CVE-2025-0243.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1234991