VDB
CVE-2021-23971
CVE-2021-23971
PUBLISHED
When processing a redirect with a conflicting Referrer-Policy, Firefox would have adopted the redirect's Referrer-Policy. This would have potentially resulted in more information than intended by the original origin being provided to the destination of the redirect. This vulnerability affects Firefox < 86.
EPSS 0.37% · 59.1th percentile
Risk Scores
EPSS Score
0.37%
59.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | firefox | 58.0+build6-0ubuntu0.16.04.1, *, 0 |
| Ubuntu:20.04:LTS | mozjs52 | 0, 52.9.1-1ubuntu3, 52.9.1-1build1 |
| Ubuntu:20.04:LTS | mozjs68 | 68.5.0-1~fakesync, 0, 68.5.0-2~fakesync |
| Ubuntu:18.04:LTS | mozjs38 | 38.8.0~repack1-0ubuntu4, 38.8.0~repack1-0ubuntu3, 0 |
| Ubuntu:22.04:LTS | mozjs78 | 78.15.0-2, 0, 78.13.0-1 |
| Ubuntu:18.04:LTS | mozjs52 | 52.8.1-0ubuntu0.18.04.1, 0, 52.3.1-0ubuntu3 |
| Ubuntu:18.04:LTS | firefox | 0, 56.0+build6-0ubuntu1, 59.0.1+build1-0ubuntu1 |
| Ubuntu:20.04:LTS | firefox | *, 80.0+build2-0ubuntu0.20.04.1, 80.0.1+build1-0ubuntu0.20.04.1 |
Timeline
- Feb 26, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-23971 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-07/#CVE-2021-23971 third-party-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1678545 third-party-advisory
- https://www.mozilla.org/security/advisories/mfsa2021-07/ third-party-advisory
- https://ubuntu.com/security/notices/USN-4756-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-23971 third-party-advisory