Firefox ESR: Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox…
CVE-2020-6800 is fixed in 10 products on 2 platforms, first by firefox 73.0+build3-0ubuntu0.18.04.1, released February 10, 2020. It is not reported as exploited. Patch Radar priority: High.
Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4. 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. In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
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 | 0:68.5.0-2.el8_1 | RHSA-2020:0512 | Feb 17, 2020 |
| firefox · Ubuntu 18.04.6 LTS (bionic) | 73.0+build3-0ubuntu0.18.04.1 | firefox 73.0+build3-0ubuntu0.18.04.1 | Feb 10, 2020 |
| firefox · Ubuntu 20.04 LTS (focal) | 73.0+build3-0ubuntu1 | firefox 73.0+build3-0ubuntu1 | Feb 10, 2020 |
| firefox · ol 8 | 0:68.5.0-2.0.1.el8_1 | ELSA-2020-0512 | Feb 19, 2020 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 73.0+build3-0ubuntu0.18.04.1 | firefox-geckodriver 73.0+build3-0ubuntu0.18.04.1 | Feb 10, 2020 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 73.0+build3-0ubuntu1 | firefox-geckodriver 73.0+build3-0ubuntu1 | Feb 10, 2020 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 73.0+build3-0ubuntu0.18.04.1 | firefox-mozsymbols 73.0+build3-0ubuntu0.18.04.1 | Feb 10, 2020 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 73.0+build3-0ubuntu1 | firefox-mozsymbols 73.0+build3-0ubuntu1 | Feb 10, 2020 |
| thunderbird · RHEL 8 | 0:68.5.0-1.el8_1 | RHSA-2020:0577 | Feb 24, 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) | 1:68.5.0+build1-0ubuntu1 | thunderbird 1:68.5.0+build1-0ubuntu1 | Feb 10, 2020 |
| thunderbird · ol 8 | 0:68.5.0-1.0.1.el8_1 | ELSA-2020-0577 | Feb 26, 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) | 1:68.5.0+build1-0ubuntu1 | thunderbird-gnome-support 1:68.5.0+build1-0ubuntu1 | Feb 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) | 1:68.5.0+build1-0ubuntu1 | thunderbird-mozsymbols 1:68.5.0+build1-0ubuntu1 | Feb 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) | 1:68.5.0+build1-0ubuntu1 | xul-ext-calendar-timezones 1:68.5.0+build1-0ubuntu1 | Feb 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) | 1:68.5.0+build1-0ubuntu1 | xul-ext-gdata-provider 1:68.5.0+build1-0ubuntu1 | Feb 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) | 1:68.5.0+build1-0ubuntu1 | xul-ext-lightning 1:68.5.0+build1-0ubuntu1 | Feb 10, 2020 |
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