CVE-2019-11747
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-11747
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-11747.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201909-2
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 69.0-1 | |
| sles | affected | | |
| debian | sid | fixed | 69.0-1 |
| debian | bookworm | fixed | 68.1.0esr-1 |
| debian | bullseye | fixed | 68.1.0esr-1 |
| debian | forky | fixed | 68.1.0esr-1 |
| debian | trixie | fixed | 68.1.0esr-1 |
References
Verify integrity in audit chain (admin only). AS-IS.