Description
A content process could have modified shared memory relating to crash reporting information, crash itself, and cause an out-of-bound write. This could have caused memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 73 and Firefox < ESR68.5.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | unspecified – < 73, unspecified – < ESR68.5 | 73 |
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 | 68.5.0esr-1 | — |
| Debian 13 | firefox-esr | 68.5.0esr-1 | — |
| Debian 12 | firefox-esr | 68.5.0esr-1 | — |
| Debian 10 | firefox-esr | 68.5.0esr-1~deb10u1 | DSA-4620-1 |
| Debian 9 | firefox-esr | 68.5.0esr-1~deb9u1 | DSA-4620-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | firefox-esr | 68.5.0esr-1~deb8u1 | DLA-2102-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | firefox | 73.0+build3-0ubuntu1 | — |
| Ubuntu 20.04 LTS | mozjs52 | No fix yet | — |
| Ubuntu 18.04 LTS | firefox | 73.0+build3-0ubuntu0.18.04.1 | USN-4278-1 |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
| Ubuntu 16.04 LTS | firefox | 73.0.1+build1-0ubuntu0.16.04.1 | USN-4278-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | firefox | 68.5.0-2.el8_1 | RHSA-2020:0512 |
| RHEL 7 | firefox | 68.5.0-2.el7_7 | RHSA-2020:0520 |
| RHEL 6 | firefox | 68.5.0-2.el6_10 | RHSA-2020:0521 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.0 E4S | firefox | 68.5.0-2.el8_0 | RHSA-2020:0519 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | MozillaFirefox | 68.5.0-3.72.1 | SUSE-SU-2020:0383-1 |
| SLES 15 | MozillaFirefox | 68.5.0-3.72.1 | SUSE-SU-2020:0383-1 |
| SLES 12 SP5 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SLES 12 SP4 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SLES 12 SP3 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SLES 12 SP1 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SLES 11 SP4 | MozillaFirefox | 68.5.0-78.61.2 | SUSE-SU-2020:14290-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SLES for SAP 12 SP4 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SLES for SAP 12 SP3 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SLES for SAP 12 SP2 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SLES for SAP 12 SP1 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SUSE OpenStack Cloud Crowbar 8 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SUSE OpenStack Cloud 8 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SUSE OpenStack Cloud 7 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SUSE HPE Helion OpenStack 8 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
| SUSE Enterprise Storage 5 | MozillaFirefox | 68.5.0-109.106.1 | SUSE-SU-2020:0384-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 92.0-1.2 | openSUSE-SU-2024:10600-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Leap 15.1 | MozillaFirefox | 68.5.0-lp151.2.30.1 | openSUSE-SU-2020:0230-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.23 | firefox-esr | 68.5.0-r0 | — |
| Alpine v3.22 | firefox-esr | 68.5.0-r0 | — |
| Alpine v3.21 | firefox-esr | 68.5.0-r0 | — |
| Alpine v3.20 | firefox-esr | 68.5.0-r0 | — |
| Alpine v3.19 | firefox-esr | 68.5.0-r0 | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.18 | firefox-esr | 68.5.0-r0 | — |
| Alpine v3.17 | firefox-esr | 68.5.0-r0 | — |
| Alpine v3.16 | firefox-esr | 68.5.0-r0 | — |
| Alpine v3.15 | firefox-esr | 68.5.0-r0 | — |
| Alpine v3.14 | firefox-esr | 68.5.0-r0 | — |
| Alpine v3.13 | firefox-esr | 68.5.0-r0 | — |
| Alpine v3.12 | firefox-esr | 68.5.0-r0 | — |
| Alpine v3.11 | firefox-esr | 68.5.0-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | firefox | 68.5.0-2.0.1.el8_1 | ELSA-2020-0512 |
| Oracle Linux 7 | firefox | 68.5.0-2.0.1.el7_7 | ELSA-2020-0520 |
Advisories 16
- RHSA-2020:0521 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2020:0520 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-4278-2 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-4278-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4620-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2102-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2020:0383-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10600-1 MozillaFirefox-92.0-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0384-1 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-2020:0230-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2020:0519 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2020:0512 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- SUSE-SU-2020:14290-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2020-0512 Important: firefox security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 19, 2020
- ELSA-2020-0520 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 18, 2020