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.
CVSS Details
- CVSS 3.1 Base Score: 5.4
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esrUpgrade librewolfUpgrade firefox | Aug 22, 2024 | Jan 8, 2020 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade thunderbird | Apr 27, 2020 | Jan 8, 2020 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jan 8, 2020 |
| Centos_linux | — | Upgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefox-debuginfoUpgrade firefoxUpgrade thunderbird-debugsource | Oct 25, 2019 | Oct 23, 2019 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Oct 28, 2019 | Oct 28, 2019 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade mail-client/thunderbird. | Mar 16, 2020 | Jan 8, 2020 |
| Mfsa2019 33 | — | Upgrade to Mozilla Firefox ESR version 68.2 | Oct 23, 2019 | Oct 22, 2019 |
| Mfsa2019 34 | — | Upgrade to Mozilla Firefox version 70.0 | Oct 23, 2019 | Oct 22, 2019 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 68.2 | Oct 25, 2019 | Oct 22, 2019 |
| Oracle Solaris | — | Upgrade web/data/firefox-bookmarks to version 68.2.0-11.4.15.0.1.4.0 on Solaris 11.4Upgrade mail/thunderbird to version 68.2.0-11.4.15.0.1.4.0 on Solaris 11.4Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 68.2.0-11.4.15.0.1.4.0 on Solaris 11.4Upgrade web/browser/firefox to version 68.2.0-11.4.15.0.1.4.0 on Solaris 11.4 | Nov 20, 2019 | Nov 20, 2019 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Oct 30, 2019 | Oct 22, 2019 |
| Redhat_linux | — | Upgrade thunderbird-debuginfoUpgrade firefoxUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefox-debugsourceNo solution existsUpgrade thunderbird-debugsource | Oct 25, 2019 | Oct 23, 2019 |
| Suse | — | Upgrade firefox-gtk3-langUpgrade firefox-gtk3-immodule-ximUpgrade firefox-libatk-1_0-0Upgrade firefox-gtk3-immodule-multipressUpgrade MozillaFirefox-branding-openSUSEUpgrade mozillafirefox-translations-otherUpgrade libfirefox-gthread-2_0-0Upgrade mozillafirefox-develUpgrade mozilla-nspr-develUpgrade firefox-gtk3-immodule-thaiUpgrade firefox-esr-branding-openSUSEUpgrade firefox-gtk3-immodules-tigrignaUpgrade firefox-libgtk-3-0Upgrade firefox-gtk3-dataUpgrade firefox-libgdk_pixbuf-2_0-0Upgrade libfreebl3Upgrade mozilla-nss-toolsUpgrade mozillathunderbird-translations-commonUpgrade firefox-libharfbuzz0Upgrade libsoftokn3-32bitUpgrade mozilla-nspr-32bitUpgrade libsoftokn3Upgrade mozilla-nss-develUpgrade firefox-glib2-langUpgrade mozillafirefox-translations-commonUpgrade firefox-gtk3-toolsUpgrade firefox-gtk3-immodule-vietnameseUpgrade mozillafirefox-branding-upstreamUpgrade mozilla-nssUpgrade mozillathunderbirdUpgrade libfirefox-gobject-2_0-0Upgrade mozillathunderbird-translations-otherUpgrade libfirefox-glib-2_0-0Upgrade firefox-glib2-toolsUpgrade firefox-gdk-pixbuf-thumbnailerUpgrade firefox-gtk3-branding-upstreamUpgrade mozillafirefox-branding-sleUpgrade mozillafirefox-buildsymbolsUpgrade mozillafirefox-branding-sledUpgrade mozillafirefoxUpgrade libfreebl3-32bitUpgrade mozilla-nss-32bitUpgrade firefox-libpango-1_0-0Upgrade mozilla-nss-certs-32bitUpgrade mozilla-nsprUpgrade firefox-gtk3-immodule-amharicUpgrade firefox-libffi7Upgrade firefox-gtk3-immodule-inuktitutUpgrade firefox-gdk-pixbuf-langUpgrade firefox-atk-langUpgrade libfirefox-gio-2_0-0Upgrade firefox-libffi4Upgrade firefox-libcairo-gobject2Upgrade firefox-gio-branding-upstreamUpgrade firefox-gdk-pixbuf-query-loadersUpgrade libfirefox-gmodule-2_0-0Upgrade firefox-libcairo2Upgrade mozilla-nss-certs | Nov 1, 2019 | Oct 23, 2019 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Oct 24, 2019 | Oct 23, 2019 |
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