Description
A type confusion bug in WebAssembly could be leveraged by an attacker to potentially achieve code execution. This vulnerability affects Firefox < 129, Firefox ESR < 128.1, and Thunderbird < 128.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | unspecified – < 129 | 129 |
| Mozilla | Firefox ESR | unspecified – < 128.1 | 128.1 |
| Mozilla | Thunderbird | unspecified – < 128.1 | 128.1 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | mozjs102 +1 | No fix yet | — |
| Ubuntu 22.04 LTS | mozjs78 +2 | No fix yet | — |
| Ubuntu 20.04 LTS | firefox | 129.0.1+build1-0ubuntu0.20.04.1 | USN-6966-1 |
| Ubuntu 20.04 LTS | mozjs52 +1 | No fix yet | — |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | firefox +1 | 115.14.0-2.el9_4 | RHSA-2024:5322 |
| RHEL 9 | thunderbird | 115.14.0-1.el9_4 | RHSA-2024:5392 |
| RHEL 8 | firefox | 115.14.0-2.el8_10 | RHSA-2024:5391 |
| RHEL 8 | thunderbird | 115.14.0-1.el8_10 | RHSA-2024:5402 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | firefox +1 | 115.14.0-2.el9_2 | RHSA-2024:5328 |
| RHEL 9.2 EUS | thunderbird | 115.14.0-1.el9_2 | RHSA-2024:5396 |
| RHEL 9.0 E4S | firefox | 115.14.0-2.el9_0 | RHSA-2024:5327 |
| RHEL 9.0 E4S | thunderbird | 115.14.0-1.el9_0 | RHSA-2024:5395 |
| RHEL 8.8 EUS | firefox | 115.14.0-2.el8_8 | RHSA-2024:5329 |
| RHEL 8.8 EUS | thunderbird | 115.14.0-1.el8_8 | RHSA-2024:5394 |
| RHEL 8.6 TUS | firefox | 115.14.0-2.el8_6 | RHSA-2024:5326 |
| RHEL 8.6 TUS | thunderbird | 115.14.0-1.el8_6 | RHSA-2024:5528 |
| RHEL 8.6 E4S | firefox | 115.14.0-2.el8_6 | RHSA-2024:5326 |
| RHEL 8.6 E4S | thunderbird | 115.14.0-1.el8_6 | RHSA-2024:5528 |
| RHEL 8.6 AUS | firefox | 115.14.0-2.el8_6 | RHSA-2024:5326 |
| RHEL 8.6 AUS | thunderbird | 115.14.0-1.el8_6 | RHSA-2024:5528 |
| RHEL 8.4 TUS | firefox | 115.14.0-2.el8_4 | RHSA-2024:5325 |
| RHEL 8.4 TUS | thunderbird | 115.14.0-1.el8_4 | RHSA-2024:5527 |
| RHEL 8.4 E4S | firefox | 115.14.0-2.el8_4 | RHSA-2024:5325 |
| RHEL 8.4 E4S | thunderbird | 115.14.0-1.el8_4 | RHSA-2024:5527 |
| RHEL 8.4 AUS | firefox | 115.14.0-2.el8_4 | RHSA-2024:5325 |
| RHEL 8.4 AUS | thunderbird | 115.14.0-1.el8_4 | RHSA-2024:5527 |
| RHEL 8.2 AUS | firefox | 115.14.0-2.el8_2 | RHSA-2024:5323 |
| RHEL 8.2 AUS | thunderbird | 115.14.0-1.el8_2 | RHSA-2024:5393 |
| RHEL 7 ELS | firefox | 115.14.0-2.el7_9 | RHSA-2024:5324 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | firefox +1 | 115.14.0-2.el9_4.alma.1 | ALSA-2024:5322 |
| AlmaLinux 9 | thunderbird | 115.14.0-1.el9_4.alma.1 | ALSA-2024:5392 |
| AlmaLinux 8 | firefox | 115.14.0-2.el8_10.alma.1 | ALSA-2024:5391 |
| AlmaLinux 8 | thunderbird | 115.14.0-1.el8_10.alma.1 | ALSA-2024:5402 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | firefox | 115.14.0-2.el8_10 | RLSA-2024:5391 |
| Rocky Linux 8 | thunderbird | 115.14.0-1.el8_10 | RLSA-2024:5402 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP6 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP6 | MozillaThunderbird | 128.2.3-150200.8.177.1 | SUSE-SU-2024:3507-1 |
| SLES 15 SP5 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP5 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP5 | MozillaThunderbird | 128.2.3-150200.8.177.1 | SUSE-SU-2024:3507-1 |
| SLES 15 SP4 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP4 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP3 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP3 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP2 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES 15 SP2 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | MozillaFirefox | 128.1.0-112.221.1 | SUSE-SU-2024:2876-1 |
| SLES 12 SP5 | MozillaFirefox-branding-SLE | 128-35.15.1 | SUSE-SU-2024:2876-1 |
| SLES for SAP 15 SP4 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 15 SP4 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 15 SP3 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 15 SP3 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 15 SP2 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 15 SP2 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 128.1.0-112.221.1 | SUSE-SU-2024:2876-1 |
| SLES for SAP 12 SP5 | MozillaFirefox-branding-SLE | 128-35.15.1 | SUSE-SU-2024:2876-1 |
| SLE HPC 15 SP4 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLE HPC 15 SP4 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLE HPC 15 SP3 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLE HPC 15 SP3 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SLE HPC 15 SP2 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SLE HPC 15 SP2 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 129.0-1.1 | openSUSE-SU-2024:14260-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Leap 15.6 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| openSUSE Leap 15.6 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| openSUSE Leap 15.6 | MozillaThunderbird | 128.2.3-150200.8.177.1 | SUSE-SU-2024:3507-1 |
| openSUSE Leap 15.5 | MozillaFirefox | 128.1.0-150200.152.146.1 | SUSE-SU-2024:3003-1 |
| openSUSE Leap 15.5 | MozillaFirefox-branding-SLE | 128-150200.9.16.1 | SUSE-SU-2024:3003-1 |
| openSUSE Leap 15.5 | MozillaThunderbird | 128.2.3-150200.8.177.1 | SUSE-SU-2024:3507-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | firefox +1 | 115.14.0-2.0.1.el9_4 | ELSA-2024-5322 |
| Oracle Linux 9 | thunderbird | 115.14.0-1.0.1.el9_4 | ELSA-2024-5392 |
| Oracle Linux 8 | firefox | 115.14.0-2.0.1.el8_10 | ELSA-2024-5391 |
| Oracle Linux 8 | thunderbird | 115.14.0-1.0.1.el8_10 | ELSA-2024-5402 |
| Oracle Linux 7 | firefox | 115.12.0-1.0.3.el7_9 | ELSA-2024-5324 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | firefox | 129.0.2-r0 | — |
Advisories 36
- ALSA-2024:5322 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:5392 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:5391 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:5402 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:5324 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-6966-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- RHSA-2024:5394 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5396 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5395 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5527 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5402 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5528 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5393 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5325 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5326 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5391 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5392 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5328 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5329 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5322 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5323 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:5327 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- SUSE-SU-2024:2876-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14260-1 MozillaFirefox-129.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3003-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3507-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-1783 Mozilla Firefox, Firefox ESR und Thunderbird: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 17, 2025
- RLSA-2024:5391 Important: firefox security update Rocky Linux Security Advisories · May 7, 2025
- RLSA-2024:5402 Important: thunderbird security update Rocky Linux Security Advisories · May 7, 2025
- ELSA-2024-5324 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 25, 2024
- ELSA-2024-5392 Important: thunderbird security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 14, 2024
- ELSA-2024-5391 Important: firefox security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 14, 2024
- ELSA-2024-5402 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 14, 2024
- ELSA-2024-5322 Important: firefox security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 13, 2024
- NCSC-2024-0324 Kwetsbaarheden verholpen in Mozilla Firefox en Thunderbird NCSC-NL (Netherlands) · Aug 7, 2024