Description
An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | unspecified – < 115 | 115 |
| Mozilla | Firefox ESR | unspecified – < 102.13 | 102.13 |
| Mozilla | Thunderbird | unspecified – < 102.13 | 102.13 |
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 | 102.13.0esr-1 | — |
| Debian 14 | thunderbird | 1:102.13.0-1 | — |
| Debian 13 | firefox-esr | 102.13.0esr-1 | — |
| Debian 13 | thunderbird | 1:102.13.0-1 | — |
| Debian 12 | firefox-esr | 102.13.0esr-1~deb12u1 | DSA-5450-1 |
| Debian 12 | thunderbird | 1:102.13.0-1~deb12u1 | DSA-5451-1 |
| Debian 11 | firefox-esr | 102.13.0esr-1~deb11u1 | DSA-5450-1 |
| Debian 11 | thunderbird | 1:102.13.0-1~deb11u1 | DSA-5451-1 |
| Debian 10 | firefox-esr | 102.13.0esr-1~deb10u1 | DLA-3484-1 |
| Debian 10 | thunderbird | 1:102.13.0-1~deb10u1 | DLA-3490-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | thunderbird | 1:102.13.0+build1-0ubuntu0.22.04.1 | USN-6214-1 |
| Ubuntu 20.04 LTS | firefox | 115.0+build2-0ubuntu0.20.04.3 | USN-6201-1 |
| Ubuntu 20.04 LTS | thunderbird | 1:102.13.0+build1-0ubuntu0.20.04.1 | USN-6214-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | firefox +2 | 102.13.0-2.el9_2 | RHSA-2023:4071, RHSA-2023:4064 |
| RHEL 8 | firefox +1 | 102.13.0-2.el8_8 | RHSA-2023:4076, RHSA-2023:4063 |
| RHEL 7 | firefox +1 | 102.13.0-2.el7_9 | RHSA-2023:4079, RHSA-2023:4062 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.0 EUS | firefox +1 | 102.13.0-2.el9_0 | RHSA-2023:4073, RHSA-2023:4066 |
| RHEL 8.6 EUS | firefox +1 | 102.13.0-2.el8_6 | RHSA-2023:4069, RHSA-2023:4067 |
| RHEL 8.4 TUS | firefox +1 | 102.13.0-2.el8_4 | RHSA-2023:4075, RHSA-2023:4074 |
| RHEL 8.4 E4S | firefox +1 | 102.13.0-2.el8_4 | RHSA-2023:4075, RHSA-2023:4074 |
| RHEL 8.4 AUS | firefox +1 | 102.13.0-2.el8_4 | RHSA-2023:4075, RHSA-2023:4074 |
| RHEL 8.2 TUS | firefox +1 | 102.13.0-2.el8_2 | RHSA-2023:4070, RHSA-2023:4068 |
| RHEL 8.2 E4S | firefox +1 | 102.13.0-2.el8_2 | RHSA-2023:4070, RHSA-2023:4068 |
| RHEL 8.2 AUS | firefox +1 | 102.13.0-2.el8_2 | RHSA-2023:4070, RHSA-2023:4068 |
| RHEL 8.1 E4S | firefox +1 | 102.13.0-2.el8_1 | RHSA-2023:4072, RHSA-2023:4065 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | firefox +2 | 102.13.0-2.el9_2.alma | ALSA-2023:4071, ALSA-2023:4064 |
| AlmaLinux 8 | firefox +1 | 102.13.0-2.el8_8.alma | ALSA-2023:4076, ALSA-2023:4063 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | firefox | 102.13.0-2.el9_2 | RLSA-2023:4071 |
| Rocky Linux 8 | firefox +1 | 102.13.0-2.el8_8 | RLSA-2023:4076, RLSA-2023:4063 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| SLES 15 SP5 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
| SLES 15 SP4 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| SLES 15 SP4 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
| SLES 15 SP3 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| SLES 15 SP3 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
| SLES 15 SP2 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| SLES 15 SP2 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
| SLES 15 SP1 | MozillaFirefox | 115.0-150000.150.91.1 | SUSE-SU-2023:2849-1 |
| SLES 15 SP1 | MozillaFirefox-branding-SLE | 115-150000.4.25.1 | SUSE-SU-2023:2849-1 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | MozillaFirefox | 115.0-112.165.1 | SUSE-SU-2023:2850-1 |
| SLES 12 SP5 | MozillaFirefox-branding-SLE | 115-35.12.2 | SUSE-SU-2023:2850-1 |
| SLES 12 SP4 | MozillaFirefox | 115.0-112.165.1 | SUSE-SU-2023:2850-1 |
| SLES 12 SP4 | MozillaFirefox-branding-SLE | 115-35.12.2 | SUSE-SU-2023:2850-1 |
| SLES 12 SP2 | MozillaFirefox | 115.0-112.165.1 | SUSE-SU-2023:2850-1 |
| SLES 12 SP2 | MozillaFirefox-branding-SLE | 115-35.12.2 | SUSE-SU-2023:2850-1 |
| SLES for SAP 15 SP3 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| SLES for SAP 15 SP3 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
| SLES for SAP 15 SP2 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| SLES for SAP 15 SP2 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
| SLES for SAP 15 SP1 | MozillaFirefox | 115.0-150000.150.91.1 | SUSE-SU-2023:2849-1 |
| SLES for SAP 15 SP1 | MozillaFirefox-branding-SLE | 115-150000.4.25.1 | SUSE-SU-2023:2849-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 115.0-112.165.1 | SUSE-SU-2023:2850-1 |
| SLES for SAP 12 SP5 | MozillaFirefox-branding-SLE | 115-35.12.2 | SUSE-SU-2023:2850-1 |
| SLES for SAP 12 SP4 | MozillaFirefox | 115.0-112.165.1 | SUSE-SU-2023:2850-1 |
| SLES for SAP 12 SP4 | MozillaFirefox-branding-SLE | 115-35.12.2 | SUSE-SU-2023:2850-1 |
| SLE Real Time 15 SP3 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| SLE Real Time 15 SP3 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
| SLE HPC 15 SP3 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| SLE HPC 15 SP3 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
| SLE HPC 15 SP2 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| SLE HPC 15 SP2 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
| SLE HPC 15 SP1 | MozillaFirefox | 115.0-150000.150.91.1 | SUSE-SU-2023:2849-1 |
| SLE HPC 15 SP1 | MozillaFirefox-branding-SLE | 115-150000.4.25.1 | SUSE-SU-2023:2849-1 |
| SUSE OpenStack Cloud Crowbar 9 | MozillaFirefox | 115.0-112.165.1 | SUSE-SU-2023:2850-1 |
| SUSE OpenStack Cloud Crowbar 9 | MozillaFirefox-branding-SLE | 115-35.12.2 | SUSE-SU-2023:2850-1 |
| SUSE OpenStack Cloud 9 | MozillaFirefox | 115.0-112.165.1 | SUSE-SU-2023:2850-1 |
| SUSE OpenStack Cloud 9 | MozillaFirefox-branding-SLE | 115-35.12.2 | SUSE-SU-2023:2850-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
| SUSE Enterprise Storage 7 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| SUSE Enterprise Storage 7 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 115.0-1.1 | openSUSE-SU-2024:13037-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 102.13.0-1.1 | openSUSE-SU-2024:13040-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Leap 15.5 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| openSUSE Leap 15.5 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
| openSUSE Leap 15.4 | MozillaFirefox | 115.0-150200.152.93.1 | SUSE-SU-2023:2886-1 |
| openSUSE Leap 15.4 | MozillaFirefox-branding-SLE | 115-150200.9.13.1 | SUSE-SU-2023:2886-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.23 | firefox-esr | 115.0-r0 | — |
| Alpine v3.22 | firefox-esr | 115.0-r0 | — |
| Alpine v3.21 | firefox-esr | 115.0-r0 | — |
| Alpine v3.20 | firefox-esr | 115.0-r0 | — |
| Alpine v3.19 | firefox-esr | 115.0-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.18 | firefox-esr | 115.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | thunderbird | 102.13.0-2.amzn2.0.1 | ALAS2-2023-2156 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | firefox +2 | 102.13.0-2.0.1.el9_2 | ELSA-2023-4071, ELSA-2023-4064 |
| Oracle Linux 8 | firefox +1 | 102.13.0-2.0.1.el8_8 | ELSA-2023-4076, ELSA-2023-4063 |
| Oracle Linux 7 | firefox +1 | 102.13.0-2.0.1.el7_9 | ELSA-2023-4079, ELSA-2023-4062 |
Advisories 45
- ALSA-2023:4071 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:4064 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:4063 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:4076 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2023-2031 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 11, 2026
- WID-SEC-2023-2917 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2026
- RHSA-2023:4079 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2023:4062 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-6201-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-6214-1 thunderbird vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-5451-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5450-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3490-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3484-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2023:4063 Important: thunderbird security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2023:4071 Important: firefox security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2023:4076 Important: firefox security update Rocky Linux Security Advisories · Feb 5, 2026
- openSUSE-SU-2024:13040-1 MozillaThunderbird-102.13.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2849-1 Security update for MozillaFirefox, MozillaFirefox-branding-SLE SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2886-1 Security update for MozillaFirefox, MozillaFirefox-branding-SLE SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13037-1 MozillaFirefox-115.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2850-1 Security update for MozillaFirefox, MozillaFirefox-branding-SLE 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-2023:4075 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4076 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4073 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4074 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4071 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4072 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4069 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4070 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4067 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4068 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4066 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4065 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4064 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:4063 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- WID-SEC-2023-1663 Mozilla Firefox und Thunderbird: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 18, 2024
- ALAS2-2023-2156 Important: thunderbird security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 25, 2023
- ELSA-2023-4079 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jul 21, 2023
- ELSA-2023-4062 Important: thunderbird security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jul 21, 2023
- ELSA-2023-4071 Important: firefox security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 17, 2023
- ELSA-2023-4064 Important: thunderbird security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 17, 2023
- ELSA-2023-4076 Important: firefox security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 17, 2023
- ELSA-2023-4063 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 17, 2023
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1826002
- https://www.mozilla.org/security/advisories/mfsa2023-22/
- https://www.mozilla.org/security/advisories/mfsa2023-23/
- https://www.mozilla.org/security/advisories/mfsa2023-24/
- https://lists.debian.org/debian-lts-announce/2023/07/msg00006.html
- https://www.debian.org/security/2023/dsa-5450
- https://www.debian.org/security/2023/dsa-5451
- https://lists.debian.org/debian-lts-announce/2023/07/msg00015.html