Bug 1496655 (CVE-2017-7823) - CVE-2017-7823 Mozilla: CSP sandbox directive did not create a unique origin (MFSA 2017-22)
Summary: CVE-2017-7823 Mozilla: CSP sandbox directive did not create a unique origin (...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-7823
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1494903
TreeView+ depends on / blocked
 
Reported: 2017-09-28 04:28 UTC by Doran Moppert
Modified: 2021-02-17 01:27 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2017-10-11 23:52:22 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2831 0 normal SHIPPED_LIVE Critical: firefox security update 2017-09-29 03:47:43 UTC
Red Hat Product Errata RHSA-2017:2885 0 normal SHIPPED_LIVE Important: thunderbird security update 2017-10-12 03:40:10 UTC

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 3 Tomas Hoger 2017-09-28 18:50:27 UTC 
Public now via upstream advisories:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-22/
https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/
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
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