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When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.12 and Thunderbird < 68.12.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade thunderbird-debuginfo | Oct 2, 2020 | Oct 2, 2020 |
| Centos_linux | — | Upgrade firefox-debuginfoUpgrade firefoxUpgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefox-debugsource | Aug 27, 2020 | Aug 26, 2020 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Aug 28, 2020 | Aug 28, 2020 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox-bin. | Aug 27, 2020 | Aug 27, 2020 |
| Mfsa2020 37 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 68.12 | Aug 26, 2020 | Aug 25, 2020 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 68.12Upgrade to the latest version of Mozilla Thunderbird | Aug 27, 2020 | Aug 25, 2020 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Aug 28, 2020 | Aug 25, 2020 |
| Redhat_linux | — | Upgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade firefoxUpgrade thunderbirdNo solution existsUpgrade thunderbird-debugsource | Aug 27, 2020 | Aug 26, 2020 |
| Suse | — | Upgrade MozillaThunderbird-translations-commonUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird | Sep 9, 2020 | Aug 27, 2020 |
| Ubuntu | — | Upgrade thunderbird | Nov 19, 2024 | Oct 1, 2020 |
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