Bug 1692373 (CVE-2018-12403)

Summary: CVE-2018-12403 firefox: mixed content warning is not displayed when HTTPS page loads a favicon over HTTP
Product: [Other] Security Response Reporter: msiddiqu
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: 0xalen+redhat, anto.trande, gecko-bugs-nobody, jhorak, john.j5live, kengert, pjasicek, rhughes, rstrode, sandmann, sgayou, stransky
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: firefox 63 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-04-01 02:13:59 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: 1692568, 1692569    
Bug Blocks: 1692382    

Description msiddiqu 2019-03-25 13:09:42 UTC 
If a site is loaded over a HTTPS connection but loads a favicon resource over HTTP, the mixed content warning is not displayed to users. This vulnerability affects Firefox < 63. 

Reference:
https://bugzilla.mozilla.org/show_bug.cgi?id=1484753
Comment 1 msiddiqu 2019-03-25 13:12:25 UTC 
External References:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-26/#CVE-2018-12403
Comment 2 Scott Gayou 2019-03-25 21:11:53 UTC 
Red Hat Enterprise Linux 7 is running 60.6.0, which is presumably impacted.
Comment 6 Scott Gayou 2019-03-25 22:01:34 UTC 
Reproduced this on the firefox version shipping with Red Hat Enterprise Linux 7. 5 and 6 were not tested, but I am guessing that they are vulnerable.