cbcvebase.
CVE-2021-29974
published 2021-08-05

CVE-2021-29974: When network partitioning was enabled, e.g. as a result of Enhanced Tracking Protection settings, a TLS error page would allow the user to override an error on…

PriorityP418medium4.3CVSS 3.1
AVNACLPRNUIRSUCNILAN
EPSS
0.84%
53.4th percentile
When network partitioning was enabled, e.g. as a result of Enhanced Tracking Protection settings, a TLS error page would allow the user to override an error on a domain which had specified HTTP Strict Transport Security (which implies that the error should not be override-able.) This issue did not affect the network connections, and they were correctly upgraded to HTTPS automatically. This vulnerability affects Firefox < 90.

Affected

6 ranges
VendorProductVersion rangeFixed in
debianfirefox< firefox 90.0-1 (sid)firefox 90.0-1 (sid)
mozillafirefox< 90.090.0
mozillafirefox
mozillafirefox>= 0 < 90.0+build1-0ubuntu0.18.04.190.0+build1-0ubuntu0.18.04.1
mozillafirefox>= 0 < 90.0+build1-0ubuntu0.20.04.190.0+build1-0ubuntu0.20.04.1
mozillafirefox>= unspecified < 9090

CVSS provenance

nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
nvdv2.02.6LOWAV:N/AC:H/Au:N/C:N/I:P/A:N
osv4.3MEDIUM
vendor_debian4.3MEDIUM
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