CVE-2021-23969
Vulnerability from cvelistv5
Published
2021-02-26 01:57
Modified
2024-08-03 19:14
Severity ?
Summary
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.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1542194Issue Tracking, Permissions Required, Vendor Advisory
security@mozilla.orghttps://lists.debian.org/debian-lts-announce/2021/03/msg00000.htmlMailing List, Third Party Advisory
security@mozilla.orghttps://security.gentoo.org/glsa/202104-09Third Party Advisory
security@mozilla.orghttps://security.gentoo.org/glsa/202104-10Third Party Advisory
security@mozilla.orghttps://www.debian.org/security/2021/dsa-4866Third Party Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2021-07/Release Notes, Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2021-08/Release Notes, Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2021-09/Release Notes, Vendor Advisory
Impacted products
MozillaFirefox
MozillaThunderbird
MozillaFirefox ESR
Show details on NVD website

To clipboard 

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