cbcvebase.
CVE-2019-11747
published 2019-09-27

CVE-2019-11747: The "Forget about this site" feature in the History pane is intended to remove all saved user data that indicates a user has visited a site. This includes…

PriorityP429medium6.5CVSS 3.1
AVNACLPRNUIRSUCNIHAN
EPSS
1.20%
64.3th percentile
The "Forget about this site" feature in the History pane is intended to remove all saved user data that indicates a user has visited a site. This includes removing any HTTP Strict Transport Security (HSTS) settings received from sites that use it. Due to a bug, sites on the pre-load list also have their HSTS setting removed. On the next visit to that site if the user specifies an http: URL rather than secure https: they will not be protected by the pre-loaded HSTS setting. After that visit the site's HSTS setting will be restored. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.

Affected

10 ranges
VendorProductVersion rangeFixed in
debianfirefox< firefox 69.0-1 (sid)firefox 69.0-1 (sid)
debianfirefox-esr< firefox 69.0-1 (sid)firefox 69.0-1 (sid)
mozillafirefox< 69.069.0
mozillafirefox>= 0 < 69.0+build2-0ubuntu0.16.04.469.0+build2-0ubuntu0.16.04.4
mozillafirefox>= 0 < 69.0.2+build1-0ubuntu0.16.04.169.0.2+build1-0ubuntu0.16.04.1
mozillafirefox>= 0 < 69.0+build2-0ubuntu0.18.04.169.0+build2-0ubuntu0.18.04.1
mozillafirefox>= 0 < 69.0.2+build1-0ubuntu0.18.04.169.0.2+build1-0ubuntu0.18.04.1
mozillafirefox>= unspecified < 6969
mozillafirefox_esr< 68.1.068.1.0
mozillafirefox_esr>= unspecified < 68.168.1

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
osv9.8CRITICAL
vendor_ubuntu9.8CRITICAL
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
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