Description
When storing and re-accessing data on a networking channel, the length of buffers may have been confused, resulting in an out-of-bounds memory read. This vulnerability affects Firefox < 123, Firefox ESR < 115.8, and Thunderbird < 115.8.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | unspecified – < 123 | 123 |
| Mozilla | Firefox ESR | unspecified – < 115.8 | 115.8 |
| Mozilla | Thunderbird | unspecified – < 115.8 | 115.8 |
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 | 115.8.0esr-1 | — |
| Debian 14 | thunderbird | 1:115.8.0-1 | — |
| Debian 13 | firefox-esr | 115.8.0esr-1 | — |
| Debian 13 | thunderbird | 1:115.8.0-1 | — |
| Debian 12 | firefox-esr | 115.8.0esr-1~deb12u1 | DSA-5627-1 |
| Debian 12 | thunderbird | 1:115.8.0-1~deb12u1 | DSA-5630-1 |
| Debian 11 | firefox-esr | 115.8.0esr-1~deb11u1 | DSA-5627-1 |
| Debian 11 | thunderbird | 1:115.8.0-1~deb11u1 | DSA-5630-1 |
| Debian 10 | firefox-esr | 115.8.0esr-1~deb10u1 | DLA-3747-1 |
| Debian 10 | thunderbird | 1:115.8.0-1~deb10u1 | DLA-3748-1 |
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 | 123.0+build3-0ubuntu0.20.04.1 | USN-6649-1 |
| 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 | 115.8.0-1.el9_3 | RHSA-2024:0963, RHSA-2024:0952 |
| RHEL 8 | firefox +1 | 115.8.0-1.el8_9 | RHSA-2024:0964, RHSA-2024:0955 |
| RHEL 7 | firefox +1 | 115.8.0-1.el7_9 | RHSA-2024:0976, RHSA-2024:0957 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | firefox +2 | 115.8.0-1.el9_2 | RHSA-2024:0984, RHSA-2024:0983 |
| RHEL 9.0 EUS | firefox +1 | 115.8.0-1.el9_0 | RHSA-2024:0968, RHSA-2024:0962 |
| RHEL 8.8 EUS | firefox +1 | 115.8.0-1.el8_8 | RHSA-2024:0969, RHSA-2024:0961 |
| RHEL 8.6 EUS | firefox +1 | 115.8.0-1.el8_6 | RHSA-2024:0970, RHSA-2024:0960 |
| RHEL 8.4 TUS | firefox +1 | 115.8.0-1.el8_4 | RHSA-2024:0971, RHSA-2024:0959 |
| RHEL 8.4 E4S | firefox +1 | 115.8.0-1.el8_4 | RHSA-2024:0971, RHSA-2024:0959 |
| RHEL 8.4 AUS | firefox +1 | 115.8.0-1.el8_4 | RHSA-2024:0971, RHSA-2024:0959 |
| RHEL 8.2 TUS | firefox +1 | 115.8.0-1.el8_2 | RHSA-2024:0972, RHSA-2024:0958 |
| RHEL 8.2 E4S | firefox +1 | 115.8.0-1.el8_2 | RHSA-2024:0972, RHSA-2024:0958 |
| RHEL 8.2 AUS | firefox +1 | 115.8.0-1.el8_2 | RHSA-2024:0972, RHSA-2024:0958 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | firefox +2 | 115.8.0-1.el9_3.alma | ALSA-2024:0963, ALSA-2024:0952 |
| AlmaLinux 8 | firefox +1 | 115.8.0-1.el8_9.alma | ALSA-2024:0964, ALSA-2024:0955 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | firefox | 115.8.0-1.el8_9 | RLSA-2024:0955 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
| SLES 15 SP5 | MozillaThunderbird | 115.8.0-150200.8.148.1 | SUSE-SU-2024:0608-1 |
| SLES 15 SP4 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
| SLES 15 SP3 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
| SLES 15 SP2 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
| SLES 12 SP5 | MozillaFirefox | 115.8.0-112.200.1 | SUSE-SU-2024:0580-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
| SLES for SAP 15 SP3 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
| SLES for SAP 15 SP2 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 115.8.0-112.200.1 | SUSE-SU-2024:0580-1 |
| SLE HPC 15 SP4 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
| SLE HPC 15 SP3 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
| SLE HPC 15 SP2 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 123.0-1.1 | openSUSE-SU-2024:13728-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 115.8.0-1.1 | openSUSE-SU-2024:13711-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Leap 15.5 | MozillaFirefox | 115.8.0-150200.152.126.3 | SUSE-SU-2024:1002-1, SUSE-SU-2024:0607-1 |
| openSUSE Leap 15.5 | MozillaThunderbird | 115.8.0-150200.8.148.1 | SUSE-SU-2024:0608-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | firefox-esr | 115.8.0-r0 | — |
| Alpine v3.18 | firefox-esr | 115.8.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | thunderbird | 115.8.0-1.amzn2.0.1 | ALAS2-2024-2477 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | firefox +2 | 115.8.0-1.0.1.el9_3 | ELSA-2024-0963, ELSA-2024-0952 |
| Oracle Linux 8 | firefox +1 | 115.8.0-1.0.1.el8_9 | ELSA-2024-0964, ELSA-2024-0955 |
| Oracle Linux 7 | firefox +1 | 115.8.0-1.0.1.el7_9 | ELSA-2024-0976, ELSA-2024-0957 |
Advisories 45
- ALSA-2024:0952 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:0963 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:0955 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:0964 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:0976 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:0957 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-6669-1 thunderbird vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-6649-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- RHSA-2024:0959 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0964 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0971 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0972 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0983 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0952 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0963 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0984 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0955 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0968 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0958 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0969 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0970 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0960 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0961 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:0962 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- DSA-5630-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5627-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3747-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3748-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:0955 Important: firefox security update Rocky Linux Security Advisories · Feb 5, 2026
- openSUSE-SU-2024:13711-1 MozillaThunderbird-115.8.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0608-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0607-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1002-1 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
- openSUSE-SU-2024:13728-1 MozillaFirefox-123.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- SUSE-SU-2024:0580-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2024-0443 Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird: 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
- ALAS2-2024-2477 Important: thunderbird security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Mar 4, 2024
- ELSA-2024-0963 Important: thunderbird security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Feb 27, 2024
- ELSA-2024-0964 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 27, 2024
- ELSA-2024-0955 Important: firefox security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 26, 2024
- ELSA-2024-0957 Important: thunderbird security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 26, 2024
- ELSA-2024-0976 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 26, 2024
- ELSA-2024-0952 Important: firefox security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Feb 23, 2024
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1843752
- https://www.mozilla.org/security/advisories/mfsa2024-05/
- https://www.mozilla.org/security/advisories/mfsa2024-06/
- https://www.mozilla.org/security/advisories/mfsa2024-07/
- https://lists.debian.org/debian-lts-announce/2024/03/msg00000.html
- https://lists.debian.org/debian-lts-announce/2024/03/msg00001.html