CVE-2021-29991 log

Source
Severity High
Remote Yes
Type Url request injection
Description
Firefox and Thunderbird before version 91.0.1 incorrectly accepted a newline in a HTTP/3 header, interpretting it as two separate headers. This allowed for a header splitting attack against servers using HTTP/3.
Group Package Affected Fixed Severity Status Ticket
AVG-2301 firefox 91.0-1 91.0.1-1 High Fixed
AVG-2291 thunderbird 78.14.0-1 91.1.0-1 High Fixed
References
https://www.mozilla.org/security/advisories/mfsa2021-37/
https://bugzilla.mozilla.org/show_bug.cgi?id=1724896