Description
The garbage collector could have been aborted in several states and zones and <code>GCRuntime::finishCollection</code> may not have been called, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox ESR | unspecified – < 102.5 | 102.5 |
| Mozilla | Thunderbird | unspecified – < 102.5 | 102.5 |
| Mozilla | Firefox | unspecified – < 107 | 107 |
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | firefox-esr | 102.5.0esr-1 | — |
| Debian 14 | thunderbird | 1:102.5.0-1 | — |
| Debian 13 | firefox-esr | 102.5.0esr-1 | — |
| Debian 13 | thunderbird | 1:102.5.0-1 | — |
| Debian 12 | firefox-esr | 102.5.0esr-1 | — |
| Debian 12 | thunderbird | 1:102.5.0-1 | — |
| Debian 11 | firefox-esr | 102.5.0esr-1~deb11u1 | DSA-5282-1 |
| Debian 11 | thunderbird | 1:102.5.0-1~deb11u1 | DSA-5284-1 |
| Debian 10 | firefox-esr | 102.5.0esr-1~deb10u1 | DLA-3199-1 |
| Debian 10 | thunderbird | 1:102.5.0-1~deb10u1 | DLA-3196-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | mozjs78 +1 | No fix yet | — |
| Ubuntu 22.04 LTS | thunderbird | 1:102.7.1+build2-0ubuntu0.22.04.1 | USN-5824-1 |
| Ubuntu 20.04 LTS | firefox | 107.0+build2-0ubuntu0.20.04.1 | USN-5726-1 |
| Ubuntu 20.04 LTS | mozjs52 +1 | No fix yet | — |
| Ubuntu 20.04 LTS | thunderbird | 1:102.7.1+build2-0ubuntu0.20.04.1 | USN-5824-1 |
| Ubuntu 18.04 LTS | firefox | 107.0+build2-0ubuntu0.18.04.1 | USN-5726-1 |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
| Ubuntu 18.04 LTS | thunderbird | 1:102.7.1+build2-0ubuntu0.18.04.1 | USN-5824-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | firefox | 102.5.0-1.el9_1 | RHSA-2022:8580 |
| RHEL 9 | thunderbird | 102.5.0-2.el9_1 | RHSA-2022:8561 |
| RHEL 8 | firefox | 102.5.0-1.el8_7 | RHSA-2022:8554 |
| RHEL 8 | thunderbird | 102.5.0-2.el8_7 | RHSA-2022:8547 |
| RHEL 7 | firefox | 102.5.0-1.el7_9 | RHSA-2022:8552 |
| RHEL 7 | thunderbird | 102.5.0-2.el7_9 | RHSA-2022:8555 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.0 EUS | firefox | 102.5.0-1.el9_0 | RHSA-2022:8979 |
| RHEL 9.0 EUS | thunderbird | 102.5.0-2.el9_0 | RHSA-2022:8980 |
| RHEL 8.6 EUS | firefox | 102.5.0-1.el8_6 | RHSA-2022:8548 |
| RHEL 8.6 EUS | thunderbird | 102.5.0-2.el8_6 | RHSA-2022:8545 |
| RHEL 8.4 EUS | firefox | 102.5.0-1.el8_4 | RHSA-2022:8549 |
| RHEL 8.4 EUS | thunderbird | 102.5.0-2.el8_4 | RHSA-2022:8544 |
| RHEL 8.2 TUS | firefox | 102.5.0-1.el8_2 | RHSA-2022:8550 |
| RHEL 8.2 TUS | thunderbird | 102.5.0-2.el8_2 | RHSA-2022:8543 |
| RHEL 8.2 E4S | firefox | 102.5.0-1.el8_2 | RHSA-2022:8550 |
| RHEL 8.2 E4S | thunderbird | 102.5.0-2.el8_2 | RHSA-2022:8543 |
| RHEL 8.2 AUS | firefox | 102.5.0-1.el8_2 | RHSA-2022:8550 |
| RHEL 8.2 AUS | thunderbird | 102.5.0-2.el8_2 | RHSA-2022:8543 |
| RHEL 8.1 E4S | firefox | 102.5.0-1.el8_1 | RHSA-2022:8553 |
| RHEL 8.1 E4S | thunderbird | 102.5.0-2.el8_1 | RHSA-2022:8556 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | firefox | 102.5.0-1.el9_1.alma | ALSA-2022:8580 |
| AlmaLinux 9 | thunderbird | 102.5.0-2.el9_1.alma | ALSA-2022:8561 |
| AlmaLinux 8 | firefox | 102.5.0-1.el8_7.alma | ALSA-2022:8554 |
| AlmaLinux 8 | thunderbird | 102.5.0-2.el8_7.alma | ALSA-2022:8547 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | firefox | 102.5.0-1.el8_7 | RLSA-2022:8554 |
| Rocky Linux 8 | thunderbird | 102.5.0-2.el8_7 | RLSA-2022:8547 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | MozillaFirefox | 102.5.0-150200.152.67.3 | SUSE-SU-2022:4058-1 |
| SLES 15 SP4 | MozillaThunderbird | 102.5.0-150200.8.90.1 | SUSE-SU-2022:4085-1 |
| SLES 15 SP3 | MozillaFirefox | 102.5.0-150200.152.67.3 | SUSE-SU-2022:4058-1 |
| SLES 15 SP3 | MozillaThunderbird | 102.5.0-150200.8.90.1 | SUSE-SU-2022:4085-1 |
| SLES 15 SP2 | MozillaFirefox | 102.5.0-150200.152.67.3 | SUSE-SU-2022:4058-1 |
| SLES 15 SP1 | MozillaFirefox | 102.5.0-150000.150.65.1 | SUSE-SU-2022:4083-1 |
| SLES 15 | MozillaFirefox | 102.5.0-150000.150.65.1 | SUSE-SU-2022:4083-1 |
Show 19 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | MozillaFirefox | 102.5.0-112.139.1 | SUSE-SU-2022:4247-1 |
| SLES 12 SP4 | MozillaFirefox | 102.5.0-112.139.1 | SUSE-SU-2022:4247-1 |
| SLES 12 SP3 | MozillaFirefox | 102.5.0-112.139.1 | SUSE-SU-2022:4247-1 |
| SLES 12 SP2 | MozillaFirefox | 102.5.0-112.139.1 | SUSE-SU-2022:4247-1 |
| SLES for SAP 15 SP2 | MozillaFirefox | 102.5.0-150200.152.67.3 | SUSE-SU-2022:4058-1 |
| SLES for SAP 15 SP1 | MozillaFirefox | 102.5.0-150000.150.65.1 | SUSE-SU-2022:4083-1 |
| SLES for SAP 15 | MozillaFirefox | 102.5.0-150000.150.65.1 | SUSE-SU-2022:4083-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 102.5.0-112.139.1 | SUSE-SU-2022:4247-1 |
| SLES for SAP 12 SP4 | MozillaFirefox | 102.5.0-112.139.1 | SUSE-SU-2022:4247-1 |
| SLE HPC 15 SP2 | MozillaFirefox | 102.5.0-150200.152.67.3 | SUSE-SU-2022:4058-1 |
| SLE HPC 15 SP1 | MozillaFirefox | 102.5.0-150000.150.65.1 | SUSE-SU-2022:4083-1 |
| SLE HPC 15 | MozillaFirefox | 102.5.0-150000.150.65.1 | SUSE-SU-2022:4083-1 |
| SUSE OpenStack Cloud Crowbar 9 | MozillaFirefox | 102.5.0-112.139.1 | SUSE-SU-2022:4247-1 |
| SUSE OpenStack Cloud 9 | MozillaFirefox | 102.5.0-112.139.1 | SUSE-SU-2022:4247-1 |
| SUSE Manager Server 4.1 | MozillaFirefox | 102.5.0-150200.152.67.3 | SUSE-SU-2022:4058-1 |
| SUSE Manager Retail Branch Server 4.1 | MozillaFirefox | 102.5.0-150200.152.67.3 | SUSE-SU-2022:4058-1 |
| SUSE Manager Proxy 4.1 | MozillaFirefox | 102.5.0-150200.152.67.3 | SUSE-SU-2022:4058-1 |
| SUSE Enterprise Storage 7 | MozillaFirefox | 102.5.0-150200.152.67.3 | SUSE-SU-2022:4058-1 |
| SUSE Enterprise Storage 6 | MozillaFirefox | 102.5.0-150000.150.65.1 | SUSE-SU-2022:4083-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 107.0-1.1 | openSUSE-SU-2024:12518-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Tumbleweed | mozjs102 +1 | 102.5.0-1.1 | openSUSE-SU-2024:12532-1, openSUSE-SU-2024:12519-1 |
| openSUSE Leap 15.4 | MozillaFirefox | 102.5.0-150200.152.67.3 | SUSE-SU-2022:4058-1 |
| openSUSE Leap 15.4 | MozillaThunderbird | 102.5.0-150200.8.90.1 | SUSE-SU-2022:4085-1 |
| openSUSE Leap 15.3 | MozillaFirefox | 102.5.0-150200.152.67.3 | SUSE-SU-2022:4058-1 |
| openSUSE Leap 15.3 | MozillaThunderbird | 102.5.0-150200.8.90.1 | SUSE-SU-2022:4085-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.23 | firefox-esr | 102.5.0-r0 | — |
| Alpine v3.22 | firefox-esr | 102.5.0-r0 | — |
| Alpine v3.21 | firefox-esr | 102.5.0-r0 | — |
| Alpine v3.20 | firefox-esr | 102.5.0-r0 | — |
| Alpine v3.19 | firefox-esr | 102.5.0-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.18 | firefox-esr | 102.5.0-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | firefox | 102.5.0-1.0.1.el9_1 | ELSA-2022-8580 |
| Oracle Linux 9 | thunderbird | 102.5.0-2.0.1.el9_1 | ELSA-2022-8561 |
| Oracle Linux 8 | firefox | 102.5.0-1.0.1.el8_7 | ELSA-2022-8554 |
| Oracle Linux 8 | thunderbird | 102.5.0-2.0.1.el8_7 | ELSA-2022-8547 |
| Oracle Linux 7 | firefox | 102.5.0-1.0.1.el7_9 | ELSA-2022-8552 |
| Oracle Linux 7 | thunderbird | 102.5.0-2.0.1.el7_9 | ELSA-2022-8555 |
Advisories 44
- ALSA-2022:8580 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2022:8561 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2022:8547 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2022:8554 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2022:8553 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2022:8554 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2022:8549 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2022:8550 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2022:8548 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2022:8555 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2022:8552 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-5824-1 thunderbird vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-5726-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-5284-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5282-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3196-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3199-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2022:8554 Important: firefox security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2022:8547 Important: thunderbird security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2022:4083-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12518-1 MozillaFirefox-107.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12532-1 libmozjs-102-0-102.5.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:4085-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12519-1 MozillaThunderbird-102.5.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:4058-1 Security update for MozillaFirefox 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
- RHSA-2022:8979 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:8980 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:8580 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:8561 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:8556 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:8547 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:8544 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:8545 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:8543 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- WID-SEC-2022-2055 Mozilla Firefox und Thunderbird: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 29, 2025
- SUSE-SU-2022:4247-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2023-0561 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 18, 2023
- ELSA-2022-8561 Important: thunderbird security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 24, 2022
- ELSA-2022-8580 Important: firefox security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 24, 2022
- ELSA-2022-8554 Important: firefox security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 22, 2022
- ELSA-2022-8547 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 22, 2022
- ELSA-2022-8555 Important: thunderbird security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 22, 2022
- ELSA-2022-8552 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 22, 2022