Bug 1252282 (CVE-2015-4478) - CVE-2015-4478 Mozilla: Redefinition of non-configurable JavaScript object properties (MFSA 2015-82)
Summary: CVE-2015-4478 Mozilla: Redefinition of non-configurable JavaScript object pro...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-4478
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: 1248359 1251515
TreeView+ depends on / blocked
 
Reported: 2015-08-11 06:19 UTC by Huzaifa S. Sidhpurwala
Modified: 2023-05-12 10:09 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-08-25 03:54:22 UTC
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:1586 0 normal SHIPPED_LIVE Critical: firefox security update 2015-08-11 23:47:14 UTC

Description Huzaifa S. Sidhpurwala 2015-08-11 06:19:34 UTC
Security researcher André Bargull reported non-configurable properties on JavaScript objects can be redefined while parsing JSON in violation of the ECMAScript 6 standard. This allows malicious web content to bypass same-origin policy by editing these properties to arbitrary values.



External Reference:

https://www.mozilla.org/security/announce/2015/mfsa2015-82.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges André Bargull as the original reporter.

Comment 1 errata-xmlrpc 2015-08-11 19:48:17 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2015:1586 https://rhn.redhat.com/errata/RHSA-2015-1586.html


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