Firefox ESR: By using a form with a data URI it was possible to gain access to the privileged JSONView object that…
CVE-2019-11761 is fixed in 10 products on 2 platforms, first by thunderbird 1:68.2.1+build1-0ubuntu0.18.04.1, released October 22, 2019. It is not reported as exploited. Patch Radar priority: Urgent.
By using a form with a data URI it was possible to gain access to the privileged JSONView object that had been cloned into content. Impact from exposing this object appears to be minimal, however it was a bypass of existing defense in depth mechanisms. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
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 | 0:68.2.0-2.el8_0 | RHSA-2019:3196 | Oct 24, 2019 |
| firefox · Ubuntu 18.04.6 LTS (bionic) | 70.0+build2-0ubuntu0.18.04.1 | firefox 70.0+build2-0ubuntu0.18.04.1 | Jul 9, 2020 |
| firefox · Ubuntu 20.04 LTS (focal) | 70.0+build2-0ubuntu1 | firefox 70.0+build2-0ubuntu1 | Jul 9, 2020 |
| firefox · ol 8 | 0:68.2.0-2.0.1.el8_0 | ELSA-2019-3196 | Oct 24, 2019 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 70.0+build2-0ubuntu0.18.04.1 | firefox-geckodriver 70.0+build2-0ubuntu0.18.04.1 | Jul 9, 2020 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 70.0+build2-0ubuntu1 | firefox-geckodriver 70.0+build2-0ubuntu1 | Jul 9, 2020 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 70.0+build2-0ubuntu0.18.04.1 | firefox-mozsymbols 70.0+build2-0ubuntu0.18.04.1 | Jul 9, 2020 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 70.0+build2-0ubuntu1 | firefox-mozsymbols 70.0+build2-0ubuntu1 | Jul 9, 2020 |
| thunderbird · RHEL 8 | 0:68.2.0-1.el8_0 | RHSA-2019:3237 | Oct 29, 2019 |
| thunderbird · Ubuntu 18.04.6 LTS (bionic) | 1:68.2.1+build1-0ubuntu0.18.04.1 | thunderbird 1:68.2.1+build1-0ubuntu0.18.04.1 | Oct 22, 2019 |
| thunderbird · ol 8 | 0:68.2.0-1.0.1.el8_0 | ELSA-2019-3237 | Oct 30, 2019 |
| thunderbird-gnome-support · Ubuntu 18.04.6 LTS (bionic) | 1:68.2.1+build1-0ubuntu0.18.04.1 | thunderbird-gnome-support 1:68.2.1+build1-0ubuntu0.18.04.1 | Oct 22, 2019 |
| thunderbird-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 1:68.2.1+build1-0ubuntu0.18.04.1 | thunderbird-mozsymbols 1:68.2.1+build1-0ubuntu0.18.04.1 | Oct 22, 2019 |
| xul-ext-calendar-timezones · Ubuntu 18.04.6 LTS (bionic) | 1:68.2.1+build1-0ubuntu0.18.04.1 | xul-ext-calendar-timezones 1:68.2.1+build1-0ubuntu0.18.04.1 | Oct 22, 2019 |
| xul-ext-gdata-provider · Ubuntu 18.04.6 LTS (bionic) | 1:68.2.1+build1-0ubuntu0.18.04.1 | xul-ext-gdata-provider 1:68.2.1+build1-0ubuntu0.18.04.1 | Oct 22, 2019 |
| xul-ext-lightning · Ubuntu 18.04.6 LTS (bionic) | 1:68.2.1+build1-0ubuntu0.18.04.1 | xul-ext-lightning 1:68.2.1+build1-0ubuntu0.18.04.1 | Oct 22, 2019 |
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