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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% · 58.6th percentile

Risk Scores

EPSS Score
0.37%
58.6th percentile

Affected Products

VendorProductVersions
Ubuntu:16.04:LTSfirefox55.0.2+build1-0ubuntu0.16.04.1, 41.0.2+build2-0ubuntu1, 42.0+build2-0ubuntu1
Ubuntu:20.04:LTSmozjs5252.9.1-1build1, 0, 52.9.1-1ubuntu3
Ubuntu:20.04:LTSmozjs6868.5.0-2~fakesync, 68.6.0-1, 68.6.0-1ubuntu1
Ubuntu:18.04:LTSmozjs380, 38.8.0~repack1-0ubuntu4, 38.8.0~repack1-0ubuntu3
Ubuntu:22.04:LTSmozjs7878.15.0-4ubuntu1, 0, 78.13.0-1
Ubuntu:18.04:LTSmozjs5252.3.1-0ubuntu3, 0, 52.3.1-7fakesync1
Ubuntu:18.04:LTSfirefox75.0+build3-0ubuntu0.18.04.1, 66.0.3+build1-0ubuntu0.18.04.1, 66.0.4+build3-0ubuntu0.18.04.1
Ubuntu:20.04:LTSfirefox73.0.1+build1-0ubuntu1, 74.0+build1-0ubuntu1, 74.0+build2-0ubuntu1

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