Bug 1252282 – CVE-2015-4478 Mozilla: Redefinition of non-configurable JavaScript object properties (MFSA 2015-82)

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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...

Status:	CLOSED ERRATA

Aliases:	CVE-2015-4478

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20150811,repor...
Keywords:	Security

Depends On:
Blocks:	1248359 1251515
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Reported:	2015-08-11 02:19 EDT by Huzaifa S. Sidhpurwala
Modified:	2015-08-24 23:55 EDT (History)
CC List:	3 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2015-08-24 23:54:22 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
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Verified Versions:
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2015:1586	normal	SHIPPED_LIVE	Critical: firefox security update	2015-08-11 19:47:14 EDT

Groups: None (edit)

Description Huzaifa S. Sidhpurwala 2015-08-11 02:19:34 EDT

Security researcher AndrÃ© 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 15:48:17 EDT

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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