Bug 1149301 (CVE-2019-11747)

Summary: VUL-1: CVE-2019-11747: MozillaFirefox: 'Forget about this site' removes sites from pre-loaded HSTS list
Product: [Novell Products] SUSE Security Incidents Reporter: Alexander Bergmann <abergmann>
Component: IncidentsAssignee: Charles Robertson <cgrobertson>
Status: RESOLVED FIXED QA Contact: Security Team bot <security-team>
Severity: Minor    
Priority: P4 - Low CC: atoptsoglou, smash_bz
Version: unspecified   
Target Milestone: ---   
Hardware: Other   
OS: Other   
URL: https://smash.suse.de/issue/241690/
Whiteboard: CVSSv2:NVD:CVE-2019-11747:4.3:(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Found By: Security Response Team Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---
Bug Depends on: 1149323, 1149324    
Bug Blocks:    

Description Alexander Bergmann 2019-09-04 06:49:43 UTC 
CVE-2019-11747: 'Forget about this site' removes sites from pre-loaded HSTS list

Reporter   Thomas Henlich
Impact     low

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.


References:
https://www.mozilla.org/en-US/security/advisories/mfsa2019-26/#CVE-2019-11747
https://bugzilla.mozilla.org/show_bug.cgi?id=1564481
https://bugzilla.redhat.com/show_bug.cgi?id=1748664
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-11747
Comment 1 Alexandros Toptsoglou 2020-02-04 14:42:14 UTC 
Closing