Bug 1642183 – CVE-2018-12393 Mozilla: Integer overflow during Unicode conversion while loading JavaScript

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Bug 1642183 - (CVE-2018-12393) CVE-2018-12393 Mozilla: Integer overflow during Unicode conversion while loading JavaScript

Summary:	CVE-2018-12393 Mozilla: Integer overflow during Unicode conversion while load...

Status:	NEW

Aliases:	CVE-2018-12393

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

Priority	high Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
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URL:
Whiteboard:	impact=important,public=20181023,repo...
Keywords:	Security

Depends On:	1640852 1640854
Blocks:	1640850
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Reported:	2018-10-23 18:07 EDT by Doran Moppert
Modified:	2018-10-24 21:12 EDT (History)
CC List:	4 users (show)

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:3005	None	None	None	2018-10-24 18:09 EDT
Red Hat Product Errata	RHSA-2018:3006	None	None	None	2018-10-24 18:10 EDT

Groups: None (edit)

Description Doran Moppert 2018-10-23 18:07:30 EDT

A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. 

*Note: 64-bit builds are not vulnerable to this issue.*



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-27/#CVE-2018-12393

Comment 1 Doran Moppert 2018-10-23 18:07:41 EDT

Acknowledgments:

Name: the Mozilla project
Upstream: r

Comment 3 errata-xmlrpc 2018-10-24 18:09:33 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3005 https://access.redhat.com/errata/RHSA-2018:3005

Comment 4 errata-xmlrpc 2018-10-24 18:09:57 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:3006 https://access.redhat.com/errata/RHSA-2018:3006

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