Firefox ESR: Mozilla developers reported memory safety bugs present in Firefox 76 and Firefox ESR 68.8.
CVE-2020-12410 is fixed in 10 products on 2 platforms, first by firefox 77.0.1+build1-0ubuntu0.18.04.1, released June 2, 2020. It is not reported as exploited. Patch Radar priority: High.
Mozilla developers reported memory safety bugs present in Firefox 76 and Firefox ESR 68.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Mozilla Firefox ESR (en-US) | 78.0esr | Mozilla Firefox ESR (en-US) 78.0esr | Jun 25, 2020 |
| Linux | |||
| firefox · RHEL 8 | 0:68.9.0-1.el8_2 | RHSA-2020:2379 | Jun 3, 2020 |
| firefox · Ubuntu 18.04.6 LTS (bionic) | 77.0.1+build1-0ubuntu0.18.04.1 | firefox 77.0.1+build1-0ubuntu0.18.04.1 | Jun 2, 2020 |
| firefox · Ubuntu 20.04 LTS (focal) | 77.0.1+build1-0ubuntu0.20.04.1 | firefox 77.0.1+build1-0ubuntu0.20.04.1 | Jun 2, 2020 |
| firefox · ol 8 | 0:68.9.0-1.0.1.el8_2 | ELSA-2020-2379 | Jun 5, 2020 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 77.0.1+build1-0ubuntu0.18.04.1 | firefox-geckodriver 77.0.1+build1-0ubuntu0.18.04.1 | Jun 2, 2020 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 77.0.1+build1-0ubuntu0.20.04.1 | firefox-geckodriver 77.0.1+build1-0ubuntu0.20.04.1 | Jun 2, 2020 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 77.0.1+build1-0ubuntu0.18.04.1 | firefox-mozsymbols 77.0.1+build1-0ubuntu0.18.04.1 | Jun 2, 2020 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 77.0.1+build1-0ubuntu0.20.04.1 | firefox-mozsymbols 77.0.1+build1-0ubuntu0.20.04.1 | Jun 2, 2020 |
| thunderbird · RHEL 8 | 0:68.9.0-1.el8_2 | RHSA-2020:2614 | Jun 22, 2020 |
| thunderbird · Ubuntu 18.04.6 LTS (bionic) | 1:68.10.0+build1-0ubuntu0.18.04.1 | thunderbird 1:68.10.0+build1-0ubuntu0.18.04.1 | Oct 8, 2020 |
| thunderbird · Ubuntu 20.04 LTS (focal) | 1:68.10.0+build1-0ubuntu0.20.04.1 | thunderbird 1:68.10.0+build1-0ubuntu0.20.04.1 | Oct 8, 2020 |
| thunderbird · ol 8 | 0:68.9.0-1.0.1.el8_2 | ELSA-2020-2614 | Jun 23, 2020 |
| thunderbird-gnome-support · Ubuntu 18.04.6 LTS (bionic) | 1:68.10.0+build1-0ubuntu0.18.04.1 | thunderbird-gnome-support 1:68.10.0+build1-0ubuntu0.18.04.1 | Oct 8, 2020 |
| thunderbird-gnome-support · Ubuntu 20.04 LTS (focal) | 1:68.10.0+build1-0ubuntu0.20.04.1 | thunderbird-gnome-support 1:68.10.0+build1-0ubuntu0.20.04.1 | Oct 8, 2020 |
| thunderbird-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 1:68.10.0+build1-0ubuntu0.18.04.1 | thunderbird-mozsymbols 1:68.10.0+build1-0ubuntu0.18.04.1 | Oct 8, 2020 |
| thunderbird-mozsymbols · Ubuntu 20.04 LTS (focal) | 1:68.10.0+build1-0ubuntu0.20.04.1 | thunderbird-mozsymbols 1:68.10.0+build1-0ubuntu0.20.04.1 | Oct 8, 2020 |
| xul-ext-calendar-timezones · Ubuntu 18.04.6 LTS (bionic) | 1:68.10.0+build1-0ubuntu0.18.04.1 | xul-ext-calendar-timezones 1:68.10.0+build1-0ubuntu0.18.04.1 | Oct 8, 2020 |
| xul-ext-calendar-timezones · Ubuntu 20.04 LTS (focal) | 1:68.10.0+build1-0ubuntu0.20.04.1 | xul-ext-calendar-timezones 1:68.10.0+build1-0ubuntu0.20.04.1 | Oct 8, 2020 |
| xul-ext-gdata-provider · Ubuntu 18.04.6 LTS (bionic) | 1:68.10.0+build1-0ubuntu0.18.04.1 | xul-ext-gdata-provider 1:68.10.0+build1-0ubuntu0.18.04.1 | Oct 8, 2020 |
| xul-ext-gdata-provider · Ubuntu 20.04 LTS (focal) | 1:68.10.0+build1-0ubuntu0.20.04.1 | xul-ext-gdata-provider 1:68.10.0+build1-0ubuntu0.20.04.1 | Oct 8, 2020 |
| xul-ext-lightning · Ubuntu 18.04.6 LTS (bionic) | 1:68.10.0+build1-0ubuntu0.18.04.1 | xul-ext-lightning 1:68.10.0+build1-0ubuntu0.18.04.1 | Oct 8, 2020 |
| xul-ext-lightning · Ubuntu 20.04 LTS (focal) | 1:68.10.0+build1-0ubuntu0.20.04.1 | xul-ext-lightning 1:68.10.0+build1-0ubuntu0.20.04.1 | Oct 8, 2020 |
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