Bug 1496655 (CVE-2017-7823)

Summary: CVE-2017-7823 Mozilla: CSP sandbox directive did not create a unique origin (MFSA 2017-22)
Product: [Other] Security Response Reporter: Doran Moppert <dmoppert>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
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: 2017-10-11 23:52:22 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 1494903    

Description Doran Moppert 2017-09-28 04:28:04 UTC
The content security policy (CSP) sandbox directive did not create a unique origin for the document, causing it to behave as if the allow-same-origin keyword were always specified. This could allow a Cross-Site Scripting (XSS) attack to be launched from unsafe content. 


External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-22/#CVE-2017-7823

Comment 2 Doran Moppert 2017-09-28 05:04:43 UTC
Acknowledgments:

Name: the Mozilla project
Upstream: Jun Kokatsu

Comment 4 errata-xmlrpc 2017-09-28 23:48:42 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:2831 https://access.redhat.com/errata/RHSA-2017:2831

Comment 5 errata-xmlrpc 2017-10-11 23:41:09 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:2885 https://access.redhat.com/errata/RHSA-2017:2885