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Some unicode characters are incorrectly treated as whitespace during the parsing of web content instead of triggering parsing errors. This allows malicious code to then be processed, evading cross-site scripting (XSS) filtering. This vulnerability affects Firefox < 68.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jul 23, 2019 |
| Freebsd | — | Upgrade linux-firefoxUpgrade waterfoxUpgrade linux-thunderbirdUpgrade firefox-esrUpgrade seamonkeyUpgrade libxulUpgrade linux-seamonkeyUpgrade thunderbirdUpgrade firefox | Jul 11, 2019 | Jul 9, 2019 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade www-client/firefox-bin. | Aug 16, 2019 | Jul 23, 2019 |
| Mfsa2019 21 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 68.0 | Jul 10, 2019 | Jul 9, 2019 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 68.0 | Sep 11, 2019 | Jul 23, 2019 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 23, 2019 |
| Suse | — | Upgrade firefox-gtk3-immodule-vietnameseUpgrade firefox-gtk3-dataUpgrade mozillafirefox-branding-sleUpgrade MozillaThunderbird-translations-otherUpgrade libfirefox-gthread-2_0-0Upgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefoxUpgrade firefox-gtk3-langUpgrade firefox-gtk3-immodule-ximUpgrade enigmailUpgrade MozillaFirefox-translations-commonUpgrade libfirefox-glib-2_0-0Upgrade MozillaThunderbird-translations-commonUpgrade firefox-libcairo2Upgrade firefox-libgdk_pixbuf-2_0-0Upgrade MozillaFirefox-translations-otherUpgrade libsoftokn3Upgrade firefox-gdk-pixbuf-langUpgrade firefox-libffi4Upgrade libfreebl3-32bitUpgrade libsoftokn3-32bitUpgrade mozilla-nspr-develUpgrade firefox-gtk3-immodule-amharicUpgrade MozillaThunderbirdUpgrade mozilla-nss-toolsUpgrade firefox-libatk-1_0-0Upgrade mozillafirefox-buildsymbolsUpgrade firefox-gtk3-immodule-multipressUpgrade mozilla-nss-certsUpgrade mozilla-nspr-32bitUpgrade mozilla-nss-certs-32bitUpgrade firefox-gdk-pixbuf-thumbnailerUpgrade firefox-gtk3-immodules-tigrignaUpgrade libfirefox-gio-2_0-0Upgrade firefox-gtk3-branding-upstreamUpgrade firefox-gio-branding-upstreamUpgrade firefox-libharfbuzz0Upgrade libfirefox-gobject-2_0-0Upgrade firefox-glib2-langUpgrade mozilla-nssUpgrade firefox-atk-langUpgrade firefox-gtk3-immodule-thaiUpgrade mozilla-nss-develUpgrade libfirefox-gmodule-2_0-0Upgrade mozilla-nsprUpgrade firefox-gtk3-immodule-inuktitutUpgrade firefox-libpango-1_0-0Upgrade firefox-libcairo-gobject2Upgrade firefox-libgtk-3-0Upgrade firefox-glib2-toolsUpgrade firefox-gdk-pixbuf-query-loadersUpgrade MozillaFirefox-develUpgrade libfreebl3Upgrade firefox-libffi7Upgrade mozilla-nss-32bitUpgrade MozillaThunderbird-buildsymbolsUpgrade firefox-gtk3-toolsUpgrade MozillaFirefox-branding-SLED | Oct 8, 2019 | Jul 9, 2019 |
| Ubuntu | — | Upgrade firefox | Jul 13, 2019 | Jul 9, 2019 |
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