Bug 1658401 (CVE-2018-18494)

Summary: CVE-2018-18494 Mozilla: Same-origin policy violation using location attribute and performance.getEntries to steal cross-origin URLs
Product: [Other] Security Response Reporter: Doran Moppert <dmoppert>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: cschalle, gecko-bugs-nobody, jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2019-01-29 16:11:16 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1655360, 1655361, 1655362, 1660726, 1660727, 1660728, 1661346, 1667787    
Bug Blocks: 1655358, 1660724    

Description Doran Moppert 2018-12-12 00:00:11 UTC 
A same-origin policy violation allowing the theft of cross-origin URL entries when using the Javascript `location` property to cause a redirection to another site using `performance.getEntries()`. This is a same-origin policy violation and could allow for data theft. 



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-30/#CVE-2018-18494
Comment 1 Doran Moppert 2018-12-12 00:00:13 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: James Lee of Kryptos Logic
Comment 2 errata-xmlrpc 2018-12-17 17:06:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:3831 https://access.redhat.com/errata/RHSA-2018:3831
Comment 3 errata-xmlrpc 2018-12-17 17:06:52 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3833 https://access.redhat.com/errata/RHSA-2018:3833
Comment 4 Doran Moppert 2019-01-21 04:57:52 UTC 
Statement:

In general, this flaw be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts.
Comment 6 errata-xmlrpc 2019-01-24 22:38:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:0159 https://access.redhat.com/errata/RHSA-2019:0159
Comment 7 errata-xmlrpc 2019-01-24 22:42:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:0160 https://access.redhat.com/errata/RHSA-2019:0160