As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage." Under certain types of redirects, Firefox incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination's origin. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
CVSS Details
- CVSS 3.1 Base Score: 4.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefoxUpgrade thunderbird | May 4, 2022 | Feb 26, 2021 |
| Alpine Linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-esrUpgrade librewolf | Aug 22, 2024 | Feb 26, 2021 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade thunderbird | Mar 22, 2021 | Feb 26, 2021 |
| Centos_linux | — | Upgrade firefox-debugsourceUpgrade thunderbird-debugsourceUpgrade firefoxUpgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefox-debuginfo | Feb 25, 2021 | Feb 24, 2021 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Feb 26, 2021 | Feb 26, 2021 |
| Gentoo Linux | — | Upgrade www-client/firefox-bin.Upgrade www-client/firefox.Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin. | May 3, 2021 | Feb 26, 2021 |
| Mfsa2021 07 | — | Upgrade to Mozilla Firefox version 86.0 | Feb 24, 2021 | Feb 23, 2021 |
| Mfsa2021 08 | — | Upgrade to Mozilla Firefox ESR version 78.8 | Feb 24, 2021 | Feb 23, 2021 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 78.8 | Feb 24, 2021 | Feb 23, 2021 |
| Oracle Solaris | — | Upgrade mail/thunderbird to version 78.8.0-11.4.31.0.1.88.4 on Solaris 11.4Upgrade web/browser/firefox to version 78.8.0-11.4.31.0.1.88.4 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 78.8.0-11.4.31.0.1.88.4 on Solaris 11.4 | Mar 17, 2021 | Feb 26, 2021 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox | Feb 27, 2021 | Feb 23, 2021 |
| Redhat_linux | — | No solution existsUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefoxUpgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade firefox-debugsource | Feb 25, 2021 | Feb 24, 2021 |
| Suse | — | Upgrade mozillathunderbird-translations-otherUpgrade mozillafirefoxUpgrade mozillafirefox-buildsymbolsUpgrade mozillafirefox-branding-upstreamUpgrade mozillafirefox-develUpgrade mozillafirefox-translations-commonUpgrade mozillafirefox-translations-otherUpgrade mozillathunderbirdUpgrade mozillathunderbird-translations-common | Mar 2, 2021 | Feb 26, 2021 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Feb 27, 2021 | Feb 26, 2021 |
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