Bug 1635451 – CVE-2018-12386 Mozilla: type confusion in JavaScript

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Bug 1635451 - (CVE-2018-12386) CVE-2018-12386 Mozilla: type confusion in JavaScript

Summary:	CVE-2018-12386 Mozilla: type confusion in JavaScript

Status:	NEW

Aliases:	CVE-2018-12386

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

Priority	urgent Severity urgent
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
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URL:
Whiteboard:	impact=critical,public=20181002,repor...
Keywords:	Security

Depends On:	1635175 1635173 1635174
Blocks:	1635177
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Reported:	2018-10-02 19:19 EDT by Doran Moppert
Modified:	2018-10-28 18:23 EDT (History)
CC List:	6 users (show)

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:2881	None	None	None	2018-10-08 04:26 EDT
Red Hat Product Errata	RHSA-2018:2884	None	None	None	2018-10-08 15:54 EDT

Groups: None (edit)

Description Doran Moppert 2018-10-02 19:19:19 EDT

A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-24/#CVE-2018-12386

Comment 1 Doran Moppert 2018-10-02 19:19:24 EDT

Acknowledgments:

Name: the Mozilla project
Upstream: Niklas Baumstark, Samuel Groß, Bruno Keith via Beyond Security's SecuriTeam Secure Disclosure program

Comment 3 errata-xmlrpc 2018-10-08 04:26:48 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:2881 https://access.redhat.com/errata/RHSA-2018:2881

Comment 4 errata-xmlrpc 2018-10-08 15:54:46 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2884 https://access.redhat.com/errata/RHSA-2018:2884

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