Navigation events were not fully adhering to the W3C's "Navigation-Timing Level 2" draft specification in some instances for the unload event, which restricts access to detailed timing attributes to only be same-origin. This resulted in potential cross-origin information exposure of history through timing side-channel attacks. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.
CVSS Details
- CVSS 3.1 Base Score: 3.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esrUpgrade firefox | Nov 8, 2019 | Sep 27, 2019 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade thunderbird-debuginfo | Apr 27, 2020 | Sep 27, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Sep 27, 2019 |
| Centos_linux | — | Upgrade firefox-debuginfoUpgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefoxUpgrade firefox-debugsourceUpgrade thunderbird-debugsource | Sep 5, 2019 | Sep 4, 2019 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Sep 9, 2019 | Sep 9, 2019 |
| Freebsd | — | Upgrade thunderbirdUpgrade linux-thunderbirdUpgrade linux-firefoxUpgrade firefox-esrUpgrade linux-seamonkeyUpgrade libxulUpgrade firefoxUpgrade waterfoxUpgrade seamonkey | Sep 4, 2019 | Sep 3, 2019 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade www-client/firefox-bin. | Nov 25, 2019 | Sep 27, 2019 |
| Mfsa2019 25 | — | Upgrade to Mozilla Firefox version 69.0Upgrade to the latest version of Mozilla Firefox | Sep 4, 2019 | Sep 3, 2019 |
| Mfsa2019 26 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 68.1 | Sep 4, 2019 | Sep 3, 2019 |
| Mfsa2019 27 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 60.9 | Sep 4, 2019 | Sep 3, 2019 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 68.1Upgrade to the latest version of Mozilla Thunderbird | Sep 16, 2021 | Sep 27, 2019 |
| Oracle Solaris | — | Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 60.9.0-11.4.14.0.1.3.0 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 60.9.0-11.4.14.0.1.2.0 on Solaris 11.4Upgrade web/browser/firefox to version 60.9.0-11.4.14.0.1.2.0 on Solaris 11.4Upgrade mail/thunderbird to version 60.9.0-11.4.14.0.1.3.0 on Solaris 11.4 | Oct 16, 2019 | Sep 27, 2019 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Sep 11, 2019 | Sep 3, 2019 |
| Redhat_linux | — | Upgrade thunderbird-debugsourceUpgrade firefox-debugsourceUpgrade thunderbirdUpgrade firefox-debuginfoNo solution existsUpgrade thunderbird-debuginfoUpgrade firefox | Sep 5, 2019 | Sep 4, 2019 |
| Suse | — | Upgrade firefox-gtk3-toolsUpgrade firefox-glib2-langUpgrade libsoftokn3Upgrade libfirefox-glib-2_0-0Upgrade mozilla-nss-toolsUpgrade mozilla-nss-certs-32bitUpgrade firefox-libcairo2Upgrade firefox-gtk3-immodule-ximUpgrade MozillaFirefox-branding-SLEDUpgrade MozillaFirefoxUpgrade mozilla-nss-certsUpgrade libfreebl3Upgrade MozillaThunderbird-buildsymbolsUpgrade mozilla-nspr-32bitUpgrade firefox-glib2-toolsUpgrade mozilla-nss-develUpgrade firefox-libgdk_pixbuf-2_0-0Upgrade mozilla-nssUpgrade libfirefox-gio-2_0-0Upgrade libfirefox-gmodule-2_0-0Upgrade firefox-gtk3-branding-upstreamUpgrade firefox-gdk-pixbuf-thumbnailerUpgrade mozilla-nsprUpgrade libfreebl3-32bitUpgrade MozillaFirefox-translations-otherUpgrade firefox-libpango-1_0-0Upgrade mozilla-nss-32bitUpgrade firefox-gtk3-immodule-amharicUpgrade mozillafirefox-branding-sleUpgrade firefox-libharfbuzz0Upgrade firefox-libgtk-3-0Upgrade firefox-gtk3-immodule-thaiUpgrade firefox-gtk3-langUpgrade MozillaThunderbird-translations-otherUpgrade libfirefox-gthread-2_0-0Upgrade firefox-gio-branding-upstreamUpgrade firefox-gtk3-immodule-inuktitutUpgrade MozillaThunderbird-translations-commonUpgrade firefox-libatk-1_0-0Upgrade firefox-gdk-pixbuf-langUpgrade libfirefox-gobject-2_0-0Upgrade firefox-libcairo-gobject2Upgrade mozillafirefox-branding-upstreamUpgrade firefox-gtk3-immodule-vietnameseUpgrade enigmailUpgrade firefox-gtk3-immodules-tigrignaUpgrade mozilla-nspr-develUpgrade firefox-gtk3-dataUpgrade MozillaFirefox-translations-commonUpgrade firefox-libffi4Upgrade MozillaFirefox-develUpgrade MozillaThunderbirdUpgrade firefox-gtk3-immodule-multipressUpgrade firefox-atk-langUpgrade libsoftokn3-32bitUpgrade firefox-gdk-pixbuf-query-loadersUpgrade firefox-libffi7Upgrade mozillafirefox-buildsymbols | Sep 18, 2019 | Sep 3, 2019 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Sep 5, 2019 | Sep 3, 2019 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub