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
Configurations
History
21 Nov 2024, 05:52
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://bugzilla.mozilla.org/show_bug.cgi?id=1542194 - Issue Tracking, Permissions Required, Vendor Advisory | |
| References | () https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html - Mailing List, Third Party Advisory | |
| References | () https://security.gentoo.org/glsa/202104-09 - Third Party Advisory | |
| References | () https://security.gentoo.org/glsa/202104-10 - Third Party Advisory | |
| References | () https://www.debian.org/security/2021/dsa-4866 - Third Party Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2021-07/ - Release Notes, Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2021-08/ - Release Notes, Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2021-09/ - Release Notes, Vendor Advisory |
Information
Published : 2021-02-26 02:15
Updated : 2024-11-21 05:52
NVD link : CVE-2021-23969
Mitre link : CVE-2021-23969
CVE.ORG link : CVE-2021-23969
JSON object : View
Products Affected
mozilla
- thunderbird
- firefox
- firefox_esr
debian
- debian_linux
CWE