Firefox ESR: Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5.
CVE-2020-6814 is fixed in 10 products on 2 platforms, first by firefox 74.0+build3-0ubuntu0.18.04.1, released March 10, 2020. It is not reported as exploited. Patch Radar priority: High.
Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. 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 < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
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 | 0:68.6.0-1.el8_1 | RHSA-2020:0820 | Mar 16, 2020 |
| firefox · Ubuntu 18.04.6 LTS (bionic) | 74.0+build3-0ubuntu0.18.04.1 | firefox 74.0+build3-0ubuntu0.18.04.1 | Mar 10, 2020 |
| firefox · Ubuntu 20.04 LTS (focal) | 74.0+build3-0ubuntu1 | firefox 74.0+build3-0ubuntu1 | Mar 10, 2020 |
| firefox · ol 8 | 0:68.6.0-1.0.1.el8_1 | ELSA-2020-0820 | Mar 16, 2020 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 74.0+build3-0ubuntu0.18.04.1 | firefox-geckodriver 74.0+build3-0ubuntu0.18.04.1 | Mar 10, 2020 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 74.0+build3-0ubuntu1 | firefox-geckodriver 74.0+build3-0ubuntu1 | Mar 10, 2020 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 74.0+build3-0ubuntu0.18.04.1 | firefox-mozsymbols 74.0+build3-0ubuntu0.18.04.1 | Mar 10, 2020 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 74.0+build3-0ubuntu1 | firefox-mozsymbols 74.0+build3-0ubuntu1 | Mar 10, 2020 |
| thunderbird · RHEL 8 | 0:68.6.0-1.el8_1 | RHSA-2020:0919 | Mar 23, 2020 |
| thunderbird · Ubuntu 18.04.6 LTS (bionic) | 1:68.7.0+build1-0ubuntu0.18.04.1 | thunderbird 1:68.7.0+build1-0ubuntu0.18.04.1 | Apr 6, 2020 |
| thunderbird · Ubuntu 20.04 LTS (focal) | 1:68.6.0+build2-0ubuntu1 | thunderbird 1:68.6.0+build2-0ubuntu1 | Mar 10, 2020 |
| thunderbird · ol 8 | 0:68.6.0-1.0.1.el8_1 | ELSA-2020-0919 | Mar 23, 2020 |
| thunderbird-gnome-support · Ubuntu 18.04.6 LTS (bionic) | 1:68.7.0+build1-0ubuntu0.18.04.1 | thunderbird-gnome-support 1:68.7.0+build1-0ubuntu0.18.04.1 | Apr 6, 2020 |
| thunderbird-gnome-support · Ubuntu 20.04 LTS (focal) | 1:68.6.0+build2-0ubuntu1 | thunderbird-gnome-support 1:68.6.0+build2-0ubuntu1 | Mar 10, 2020 |
| thunderbird-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 1:68.7.0+build1-0ubuntu0.18.04.1 | thunderbird-mozsymbols 1:68.7.0+build1-0ubuntu0.18.04.1 | Apr 6, 2020 |
| thunderbird-mozsymbols · Ubuntu 20.04 LTS (focal) | 1:68.6.0+build2-0ubuntu1 | thunderbird-mozsymbols 1:68.6.0+build2-0ubuntu1 | Mar 10, 2020 |
| xul-ext-calendar-timezones · Ubuntu 18.04.6 LTS (bionic) | 1:68.7.0+build1-0ubuntu0.18.04.1 | xul-ext-calendar-timezones 1:68.7.0+build1-0ubuntu0.18.04.1 | Apr 6, 2020 |
| xul-ext-calendar-timezones · Ubuntu 20.04 LTS (focal) | 1:68.6.0+build2-0ubuntu1 | xul-ext-calendar-timezones 1:68.6.0+build2-0ubuntu1 | Mar 10, 2020 |
| xul-ext-gdata-provider · Ubuntu 18.04.6 LTS (bionic) | 1:68.7.0+build1-0ubuntu0.18.04.1 | xul-ext-gdata-provider 1:68.7.0+build1-0ubuntu0.18.04.1 | Apr 6, 2020 |
| xul-ext-gdata-provider · Ubuntu 20.04 LTS (focal) | 1:68.6.0+build2-0ubuntu1 | xul-ext-gdata-provider 1:68.6.0+build2-0ubuntu1 | Mar 10, 2020 |
| xul-ext-lightning · Ubuntu 18.04.6 LTS (bionic) | 1:68.7.0+build1-0ubuntu0.18.04.1 | xul-ext-lightning 1:68.7.0+build1-0ubuntu0.18.04.1 | Apr 6, 2020 |
| xul-ext-lightning · Ubuntu 20.04 LTS (focal) | 1:68.6.0+build2-0ubuntu1 | xul-ext-lightning 1:68.6.0+build2-0ubuntu1 | Mar 10, 2020 |
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