Bug 1576280 (CVE-2018-5181)

Summary: CVE-2018-5181 Mozilla: Local file can be displayed in noopener tab through drag and drop of hyperlink
Product: [Other] Security Response Reporter: Doran Moppert <dmoppert>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: cschalle, gecko-bugs-nobody, jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2019-06-10 10:22:24 UTC Type: ---
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Bug Blocks: 1573375    

Description Doran Moppert 2018-05-09 07:16:40 UTC
If a URL using the `file:` protocol is dragged and dropped onto an open tab that is running in a different child process the tab will open a local file corresponding to the dropped URL, contrary to policy. One way to make the target tab open more reliably in a separate process is to open it with the `noopener` keyword. 



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/#CVE-2018-5181

Comment 1 Doran Moppert 2018-05-09 07:16:45 UTC
Acknowledgments:

Name: the Mozilla project
Upstream: Abdulrahman Alqabandi