CVE-2021-23969 - log back

CVE-2021-23969 edited at 23 Feb 2021 19:03:40
Description
- A security issue was found in Firefox before version 86.0. 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.
+ A security issue was found in Firefox before version 86.0 and Thunderbird before version 78.8. 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 and Thunderbird incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination's origin.
References
https://www.mozilla.org/en-US/security/advisories/mfsa2021-07/#CVE-2021-23969
+ https://www.mozilla.org/en-US/security/advisories/mfsa2021-09/#CVE-2021-23969
https://bugzilla.mozilla.org/show_bug.cgi?id=1542194
CVE-2021-23969 edited at 23 Feb 2021 18:45:00
Severity
- Unknown
+ High
Remote
- Unknown
+ Remote
Type
- Unknown
+ Information disclosure
Description
+ A security issue was found in Firefox before version 86.0. 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.
References
+ https://www.mozilla.org/en-US/security/advisories/mfsa2021-07/#CVE-2021-23969
+ https://bugzilla.mozilla.org/show_bug.cgi?id=1542194
Notes
CVE-2021-23969 created at 23 Feb 2021 18:42:31