CVEvulnerability
CVE-2019-11747
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2019-09-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-665
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.
Affected configurations
• mozilla firefox (< 69.0)
• mozilla firefox esr (< 68.1.0)
Related
Weakness · CWE (1)
- CWE-665 Improper Initialization weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html lists.opensuse.org
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html lists.opensuse.org
- https://bugzilla.mozilla.org/show_bug.cgi?id=1564481 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-25/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-26/ Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html lists.opensuse.org
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html lists.opensuse.org
- https://bugzilla.mozilla.org/show_bug.cgi?id=1564481 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-25/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-26/ Vendor Advisory