Firefox 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. This vulnerability affects Firefox < 91.0.1 and Thunderbird < 91.0.1.
References
Link | Resource |
---|---|
https://bugzilla.mozilla.org/show_bug.cgi?id=1724896 | Permissions Required |
https://www.mozilla.org/security/advisories/mfsa2021-37/ | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mozilla
Published: 2021-11-03T00:04:17
Updated: 2021-11-03T00:04:17
Reserved: 2021-04-01T00:00:00
Link: CVE-2021-29991
JSON object: View
NVD Information
Status : Analyzed
Published: 2021-11-03T01:15:07.060
Modified: 2021-11-04T21:01:32.743
Link: CVE-2021-29991
JSON object: View
Redhat Information
No data.
CWE