Bug 1220604 – CVE-2015-2712 Mozilla: Out-of-bounds read and write in asm.js validation (MFSA 2015-50)

Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.

Bug 1220604 - (CVE-2015-2712) CVE-2015-2712 Mozilla: Out-of-bounds read and write in asm.js validation (MFSA 2015-50)

Summary:	CVE-2015-2712 Mozilla: Out-of-bounds read and write in asm.js validation (MFS...

Status:	CLOSED NOTABUG

Aliases:	CVE-2015-2712

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
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=critical,public=20150512,repor...
Keywords:	Security

Depends On:
Blocks:	1209788
	Show dependency tree / graph

Reported:	2015-05-11 21:15 EDT by Huzaifa S. Sidhpurwala
Modified:	2016-03-04 06:25 EST (History)
CC List:	1 user (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2015-05-12 14:24:13 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Huzaifa S. Sidhpurwala 2015-05-11 21:15:33 EDT

Security researcher Dougall Johnson reported an out-of-bounds read and write in asm.js during JavaScript validation due to an error in how heap lengths are defined. This results in a potentially exploitable crash and could allow for the reading of random memory which may contain sensitive data. 



External Reference:

http://www.mozilla.org/security/announce/2015/mfsa2015-50.html


Acknowledgements:

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

Statement:

This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.

Note You need to log in before you can comment on or make changes to this bug.