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The code for downloading files did not properly take care of special characters, which led to an attacker being able to cut off the file ending at an earlier position, leading to a different file type being downloaded than shown in the dialog. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esrUpgrade librewolfUpgrade firefoxUpgrade thunderbird | Aug 22, 2024 | Aug 10, 2020 |
| Centos_linux | — | Upgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade firefox | Aug 27, 2020 | Aug 10, 2020 |
| Mfsa2020 30 | — | Upgrade to Mozilla Firefox version 79.0Upgrade to the latest version of Mozilla Firefox | Jul 29, 2020 | Jul 28, 2020 |
| Mfsa2020 32 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 78.1 | Jul 29, 2020 | Jul 28, 2020 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 78.1Upgrade to the latest version of Mozilla Thunderbird | Jul 29, 2020 | Jul 28, 2020 |
| Oracle Solaris | — | Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 68.12.0-11.4.27.0.1.82.0 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 78.3.0-11.4.27.0.1.82.0 on Solaris 11.4Upgrade web/browser/firefox to version 78.3.0-11.4.27.0.1.82.0 on Solaris 11.4Upgrade mail/thunderbird to version 78.3.0-11.4.27.0.1.82.0 on Solaris 11.4 | Jan 19, 2021 | Aug 10, 2020 |
| Oracle_linux | — | Upgrade firefox | Aug 29, 2020 | Jul 28, 2020 |
| Redhat_linux | — | Upgrade firefox-debuginfoUpgrade firefox-debugsourceNo solution existsUpgrade firefox | Aug 27, 2020 | Aug 10, 2020 |
| Suse | — | Upgrade gstreamer-plugin-pipewireUpgrade libpipewire-0_3-0Upgrade mozillafirefox-buildsymbolsUpgrade MozillaFirefox-translations-otherUpgrade pipewire-spa-plugins-0_2Upgrade pipewire-spa-toolsUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-develUpgrade pipewireUpgrade pipewire-develUpgrade pipewire-libpulse-0_3Upgrade pipewire-libjack-0_3Upgrade mozillafirefox-branding-sleUpgrade MozillaFirefoxUpgrade pipewire-toolsUpgrade MozillaFirefox-translations-commonUpgrade pipewire-modulesUpgrade pipewire-doc | Aug 1, 2020 | Jul 31, 2020 |
| Ubuntu | — | Upgrade firefox | Aug 5, 2020 | Jul 29, 2020 |
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