Description
When running, the updater service wrote status and log files to an unrestricted location; potentially allowing an unprivileged process to locate and exploit a vulnerability in file handling in the updater service. *Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.*. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Thunderbird | before 68.3 | — |
| Mozilla | Firefox ESR | before 68.3 | — |
| Mozilla | Firefox | before 71 | — |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | mozjs52 | No fix yet | — |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | MozillaFirefox | 68.3.0-3.62.2 | SUSE-SU-2019:3337-1 |
| SLES 15 SP1 | MozillaThunderbird | 68.3.0-3.61.2 | SUSE-SU-2019:3339-1 |
| SLES 15 | MozillaFirefox | 68.3.0-3.62.2 | SUSE-SU-2019:3337-1 |
| SLES 15 | MozillaThunderbird | 68.3.0-3.61.2 | SUSE-SU-2019:3339-1 |
| SLES 12 SP5 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SLES 12 SP4 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SLES 12 SP3 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SLES 12 SP1 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SLES 11 SP4 | MozillaFirefox | 68.3.0-78.54.1 | SUSE-SU-2019:14260-1 |
| SLES 11 SP4 | mozilla-nspr | 4.23-29.9.1 | SUSE-SU-2019:14260-1 |
| SLES 11 SP4 | mozilla-nss | 3.47.1-38.12.1 | SUSE-SU-2019:14260-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SLES for SAP 12 SP4 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SLES for SAP 12 SP3 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SLES for SAP 12 SP2 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SLES for SAP 12 SP1 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SUSE OpenStack Cloud Crowbar 8 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SUSE OpenStack Cloud 8 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SUSE OpenStack Cloud 7 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SUSE HPE Helion OpenStack 8 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
| SUSE Enterprise Storage 5 | MozillaFirefox | 68.3.0-109.98.1 | SUSE-SU-2019:3347-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | MozillaFirefox | 68.3.0-lp151.2.21.1 | openSUSE-SU-2020:0002-1 |
| openSUSE Leap 15.1 | MozillaThunderbird | 68.3.0-lp151.2.19.1 | openSUSE-SU-2020:0003-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.23 | firefox-esr | 68.3.0-r0 | — |
| Alpine v3.22 | firefox-esr | 68.3.0-r0 | — |
| Alpine v3.21 | firefox-esr | 68.3.0-r0 | — |
| Alpine v3.20 | firefox-esr | 68.3.0-r0 | — |
| Alpine v3.19 | firefox-esr | 68.3.0-r0 | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.18 | firefox-esr | 68.3.0-r0 | — |
| Alpine v3.17 | firefox-esr | 68.3.0-r0 | — |
| Alpine v3.16 | firefox-esr | 68.3.0-r0 | — |
| Alpine v3.15 | firefox-esr | 68.3.0-r0 | — |
| Alpine v3.14 | firefox-esr | 68.3.0-r0 | — |
| Alpine v3.13 | firefox-esr | 68.3.0-r0 | — |
| Alpine v3.12 | firefox-esr | 68.3.0-r0 | — |
| Alpine v3.11 | firefox-esr | 68.3.0-r0 | — |
Advisories 7
- SUSE-SU-2019:3337-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0002-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:14260-1 Security update for MozillaFirefox, mozilla-nspr, mozilla-nss SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3339-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3347-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0003-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-1826 Mozilla Firefox: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 19, 2024