Bug 1748664 (CVE-2019-11747)

Summary: CVE-2019-11747 Mozilla: 'Forget about this site' removes sites from pre-loaded HSTS list
Product: [Other] Security Response Reporter: Doran Moppert <dmoppert>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: firefox 68.1 Doc Type: If docs needed, set a value
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Story Points: ---
Clone Of: Environment:
Last Closed: 2019-09-05 01:07:38 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1745831, 1745832, 1748670    
Bug Blocks: 1745825    

Description Doran Moppert 2019-09-04 00:48:34 UTC
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.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2019-26/#CVE-2019-11747

Comment 1 Doran Moppert 2019-09-04 00:48:37 UTC
Acknowledgments:

Name: the Mozilla project
Upstream: Thomas Henlich

Comment 3 errata-xmlrpc 2019-09-04 20:12:19 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:2663 https://access.redhat.com/errata/RHSA-2019:2663

Comment 4 Product Security DevOps Team 2019-09-05 01:07:38 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-11747