Firefox ESR and 2 others: By holding a reference to the eval() function from an about:blank window, a malicious webpage could have…
CVE-2020-15664 is fixed in 11 products on 2 platforms, first by firefox 80.0+build2-0ubuntu0.18.04.1, released August 25, 2020. It is not reported as exploited. Patch Radar priority: Routine.
By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, Firefox ESR < 78.2, and Firefox for Android < 80.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Mozilla Firefox ESR (en-US) | 91.0 | Mozilla Firefox ESR (en-US) 91.0 | Aug 4, 2021 |
| Mozilla Thunderbird (en-US) | 78.2.1 | Mozilla Thunderbird (en-US) 78.2.1 | Aug 28, 2020 |
| Linux | |||
| firefox · RHEL 8 | 0:78.2.0-2.el8_2 | RHSA-2020:3557 | Aug 26, 2020 |
| firefox · Ubuntu 18.04.6 LTS (bionic) | 80.0+build2-0ubuntu0.18.04.1 | firefox 80.0+build2-0ubuntu0.18.04.1 | Aug 25, 2020 |
| firefox · Ubuntu 20.04 LTS (focal) | 80.0+build2-0ubuntu0.20.04.1 | firefox 80.0+build2-0ubuntu0.20.04.1 | Aug 25, 2020 |
| firefox · ol 8 | 0:78.2.0-2.0.1.el8_2 | ELSA-2020-3557 | Aug 28, 2020 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 80.0+build2-0ubuntu0.18.04.1 | firefox-geckodriver 80.0+build2-0ubuntu0.18.04.1 | Aug 25, 2020 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 80.0+build2-0ubuntu0.20.04.1 | firefox-geckodriver 80.0+build2-0ubuntu0.20.04.1 | Aug 25, 2020 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 80.0+build2-0ubuntu0.18.04.1 | firefox-mozsymbols 80.0+build2-0ubuntu0.18.04.1 | Aug 25, 2020 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 80.0+build2-0ubuntu0.20.04.1 | firefox-mozsymbols 80.0+build2-0ubuntu0.20.04.1 | Aug 25, 2020 |
| thunderbird · RHEL 8 | 0:68.12.0-1.el8_2 | RHSA-2020:3634 | Sep 7, 2020 |
| thunderbird · Ubuntu 18.04.6 LTS (bionic) | 1:78.8.1+build1-0ubuntu0.18.04.1 | thunderbird 1:78.8.1+build1-0ubuntu0.18.04.1 | Apr 22, 2021 |
| thunderbird · Ubuntu 20.04 LTS (focal) | 1:78.7.1+build1-0ubuntu0.20.04.1 | thunderbird 1:78.7.1+build1-0ubuntu0.20.04.1 | Jan 25, 2021 |
| thunderbird · ol 8 | 0:68.12.0-1.0.1.el8_2 | ELSA-2020-3634 | Sep 8, 2020 |
| thunderbird-gnome-support · Ubuntu 18.04.6 LTS (bionic) | 1:78.8.1+build1-0ubuntu0.18.04.1 | thunderbird-gnome-support 1:78.8.1+build1-0ubuntu0.18.04.1 | Apr 22, 2021 |
| thunderbird-gnome-support · Ubuntu 20.04 LTS (focal) | 1:78.7.1+build1-0ubuntu0.20.04.1 | thunderbird-gnome-support 1:78.7.1+build1-0ubuntu0.20.04.1 | Jan 25, 2021 |
| thunderbird-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 1:78.8.1+build1-0ubuntu0.18.04.1 | thunderbird-mozsymbols 1:78.8.1+build1-0ubuntu0.18.04.1 | Apr 22, 2021 |
| thunderbird-mozsymbols · Ubuntu 20.04 LTS (focal) | 1:78.7.1+build1-0ubuntu0.20.04.1 | thunderbird-mozsymbols 1:78.7.1+build1-0ubuntu0.20.04.1 | Jan 25, 2021 |
| xul-ext-calendar-timezones · Ubuntu 18.04.6 LTS (bionic) | 1:78.8.1+build1-0ubuntu0.18.04.1 | xul-ext-calendar-timezones 1:78.8.1+build1-0ubuntu0.18.04.1 | Apr 22, 2021 |
| xul-ext-calendar-timezones · Ubuntu 20.04 LTS (focal) | 1:78.7.1+build1-0ubuntu0.20.04.1 | xul-ext-calendar-timezones 1:78.7.1+build1-0ubuntu0.20.04.1 | Jan 25, 2021 |
| xul-ext-gdata-provider · Ubuntu 18.04.6 LTS (bionic) | 1:78.8.1+build1-0ubuntu0.18.04.1 | xul-ext-gdata-provider 1:78.8.1+build1-0ubuntu0.18.04.1 | Apr 22, 2021 |
| xul-ext-gdata-provider · Ubuntu 20.04 LTS (focal) | 1:78.7.1+build1-0ubuntu0.20.04.1 | xul-ext-gdata-provider 1:78.7.1+build1-0ubuntu0.20.04.1 | Jan 25, 2021 |
| xul-ext-lightning · Ubuntu 18.04.6 LTS (bionic) | 1:78.8.1+build1-0ubuntu0.18.04.1 | xul-ext-lightning 1:78.8.1+build1-0ubuntu0.18.04.1 | Apr 22, 2021 |
| xul-ext-lightning · Ubuntu 20.04 LTS (focal) | 1:78.7.1+build1-0ubuntu0.20.04.1 | xul-ext-lightning 1:78.7.1+build1-0ubuntu0.20.04.1 | Jan 25, 2021 |
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