Description
In specific HSTS configurations an attacker could have bypassed HSTS on a subdomain. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | unspecified – < 122 | 122 |
| Mozilla | Firefox ESR | unspecified – < 115.7 | 115.7 |
| Mozilla | Thunderbird | unspecified – < 115.7 | 115.7 |
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 | 115.7.0esr-1 | — |
| Debian 14 | thunderbird | 1:115.7.0-1 | — |
| Debian 13 | firefox-esr | 115.7.0esr-1 | — |
| Debian 13 | thunderbird | 1:115.7.0-1 | — |
| Debian 12 | firefox-esr | 115.7.0esr-1~deb12u1 | DSA-5606-1 |
| Debian 12 | thunderbird | 1:115.7.0-1~deb12u1 | DSA-5605-1 |
| Debian 11 | firefox-esr | 115.7.0esr-1~deb11u1 | DSA-5606-1 |
| Debian 11 | thunderbird | 1:115.7.0-1~deb11u1 | DSA-5605-1 |
| Debian 10 | firefox-esr | 115.7.0esr-1~deb10u1 | DLA-3727-1 |
| Debian 10 | thunderbird | 1:115.7.0-1~deb10u1 | DLA-3720-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | mozjs102 | No fix yet | — |
| Ubuntu 22.04 LTS | mozjs78 +2 | No fix yet | — |
| Ubuntu 22.04 LTS | thunderbird | 1:115.8.1+build1-0ubuntu0.22.04.1 | USN-6669-1 |
| Ubuntu 20.04 LTS | firefox | 122.0+build2-0ubuntu0.20.04.1 | USN-6610-1 |
| Ubuntu 20.04 LTS | mozjs52 +1 | No fix yet | — |
| Ubuntu 20.04 LTS | thunderbird | 1:115.8.1+build1-0ubuntu0.20.04.1 | USN-6669-1 |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | firefox +2 | 115.7.0-1.el9_3 | RHSA-2024:0603, RHSA-2024:0602 |
| RHEL 8 | firefox +1 | 115.7.0-1.el8_9 | RHSA-2024:0609, RHSA-2024:0608 |
| RHEL 7 | firefox +1 | 115.7.0-1.el7_9 | RHSA-2024:0601, RHSA-2024:0600 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | firefox +2 | 115.7.0-1.el9_2 | RHSA-2024:0605, RHSA-2024:0604 |
| RHEL 9.0 EUS | firefox +1 | 115.7.0-1.el9_0 | RHSA-2024:0616, RHSA-2024:0615 |
| RHEL 8.8 EUS | firefox +1 | 115.7.0-1.el8_8 | RHSA-2024:0598, RHSA-2024:0596 |
| RHEL 8.6 EUS | firefox +1 | 115.7.0-1.el8_6 | RHSA-2024:0623, RHSA-2024:0622 |
| RHEL 8.4 TUS | firefox +1 | 115.7.0-1.el8_4 | RHSA-2024:0565, RHSA-2024:0559 |
| RHEL 8.4 E4S | firefox +1 | 115.7.0-1.el8_4 | RHSA-2024:0565, RHSA-2024:0559 |
| RHEL 8.4 AUS | firefox +1 | 115.7.0-1.el8_4 | RHSA-2024:0565, RHSA-2024:0559 |
| RHEL 8.2 TUS | firefox +1 | 115.7.0-1.el8_2 | RHSA-2024:0619, RHSA-2024:0618 |
| RHEL 8.2 E4S | firefox +1 | 115.7.0-1.el8_2 | RHSA-2024:0619, RHSA-2024:0618 |
| RHEL 8.2 AUS | firefox +1 | 115.7.0-1.el8_2 | RHSA-2024:0619, RHSA-2024:0618 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | firefox +2 | 115.7.0-1.el9_3.alma | ALSA-2024:0603, ALSA-2024:0602 |
| AlmaLinux 8 | firefox +1 | 115.7.0-1.el8_9.alma.1 | ALSA-2024:0609, ALSA-2024:0608 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | firefox +1 | 115.7.0-1.el8_9 | RLSA-2024:0609, RLSA-2024:0608 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
| SLES 15 SP5 | MozillaThunderbird | 115.7.0-150200.8.145.1 | SUSE-SU-2024:0242-1 |
| SLES 15 SP4 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
| SLES 15 SP3 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
| SLES 15 SP2 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
| SLES 15 SP1 | MozillaFirefox | 115.7.0-150000.150.122.1 | SUSE-SU-2024:0228-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | MozillaFirefox | 115.7.0-112.197.1 | SUSE-SU-2024:0211-1 |
| SLES for SAP 15 SP4 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
| SLES for SAP 15 SP3 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
| SLES for SAP 15 SP2 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
| SLES for SAP 15 SP1 | MozillaFirefox | 115.7.0-150000.150.122.1 | SUSE-SU-2024:0228-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 115.7.0-112.197.1 | SUSE-SU-2024:0211-1 |
| SLE HPC 15 SP4 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
| SLE HPC 15 SP3 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
| SLE HPC 15 SP2 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
| SLE HPC 15 SP1 | MozillaFirefox | 115.7.0-150000.150.122.1 | SUSE-SU-2024:0228-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 122.0-1.1 | openSUSE-SU-2024:13626-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 115.7.0-1.1 | openSUSE-SU-2024:13617-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Leap 15.5 | MozillaFirefox | 115.7.0-150200.152.123.1 | SUSE-SU-2024:0229-1 |
| openSUSE Leap 15.5 | MozillaThunderbird | 115.7.0-150200.8.145.1 | SUSE-SU-2024:0242-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | firefox-esr | 115.7.0-r0 | — |
| Alpine v3.18 | firefox-esr | 115.7.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | thunderbird | 115.7.0-1.amzn2.0.2 | ALAS2-2024-2440 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | firefox +2 | 115.7.0-1.0.1.el9_3 | ELSA-2024-0603, ELSA-2024-0602 |
| Oracle Linux 8 | firefox +1 | 115.7.0-1.0.1.el8_9 | ELSA-2024-0609, ELSA-2024-0608 |
| Oracle Linux 7 | firefox +1 | 115.7.0-1.0.1.el7_9 | ELSA-2024-0601, ELSA-2024-0600 |
Advisories 46
- ALSA-2024:0602 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:0603 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:0609 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:0608 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:0601 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:0600 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-6669-1 thunderbird vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-6610-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- RHSA-2024:0618 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0622 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0623 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0605 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0608 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0609 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0616 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0619 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0604 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0596 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0615 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0602 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0603 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0598 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0559 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0565 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- DSA-5605-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5606-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3727-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3720-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:0608 Important: firefox security update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2024:0609 Important: thunderbird security update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2024:13617-1 MozillaThunderbird-115.7.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0211-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0228-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13626-1 MozillaFirefox-122.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0229-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0242-1 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-2024-0185 Mozilla Firefox: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 15, 2024
- WID-SEC-2024-1248 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 21, 2024
- ALAS2-2024-2440 Moderate: thunderbird security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 1, 2024
- ELSA-2024-0602 Important: thunderbird security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jan 31, 2024
- ELSA-2024-0608 Important: firefox security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jan 31, 2024
- ELSA-2024-0609 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jan 31, 2024
- ELSA-2024-0603 Important: firefox security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jan 30, 2024
- ELSA-2024-0601 Important: thunderbird security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 30, 2024
- ELSA-2024-0600 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 30, 2024
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1870262
- https://www.mozilla.org/security/advisories/mfsa2024-01/
- https://www.mozilla.org/security/advisories/mfsa2024-02/
- https://www.mozilla.org/security/advisories/mfsa2024-04/
- https://lists.debian.org/debian-lts-announce/2024/01/msg00015.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00022.html