Bug 1642183 (CVE-2018-12393)

Summary: CVE-2018-12393 Mozilla: Integer overflow during Unicode conversion while loading JavaScript
Product: [Other] Security Response Reporter: Doran Moppert <dmoppert>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: cschalle, gecko-bugs-nobody, jhorak, stransky
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-11-13 06:15:23 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1640852, 1640854, 1644504, 1644506, 1649193, 1649195    
Bug Blocks: 1640850, 1644502    

Description Doran Moppert 2018-10-23 22:07:30 UTC 
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 3 errata-xmlrpc 2018-10-24 22:09:33 UTC 
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 22:09:57 UTC 
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
Comment 5 errata-xmlrpc 2018-11-09 11:48:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:3531 https://access.redhat.com/errata/RHSA-2018:3531
Comment 6 errata-xmlrpc 2018-11-09 11:48:50 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3532 https://access.redhat.com/errata/RHSA-2018:3532
Comment 9 Martin Prpič 2021-02-25 20:25:16 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: R (Zero Day LLC)