Bug 891822 (CVE-2013-0760, CVE-2013-0761, CVE-2013-0763, CVE-2013-0771)

Summary:	CVE-2013-0760 CVE-2013-0761 CVE-2013-0763 CVE-2013-0771 Mozilla: Use-after-free and buffer overflow issues found using Address Sanitizer (MFSA 2013-02)
Product:	[Other] Security Response	Reporter:	Huzaifa S. Sidhpurwala <huzaifas>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	unspecified	CC:	jrusnack, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
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Clone Of:		Environment:
Last Closed:	2013-01-04 05:20:37 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	890133

Description Huzaifa S. Sidhpurwala 2013-01-04 05:18:07 UTC

Security researcher Abhishek Arya (Inferno) of the Google Chrome Security Team discovered a series critically rated of use-after-free, out of bounds read, and buffer overflow issues using the Address Sanitizer tool in shipped software. These issues are potentially exploitable, allowing for remote code execution. We would also like to thank Abhishek for reporting three additional user-after-free and out of bounds read flaws introduced during Firefox development that were fixed before general release.

In general these flaws cannot be exploited through email in the Thunderbird and SeaMonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts in those products.

The following issue was fixed in Firefox 18:

    Global-buffer-overflow in CharDistributionAnalysis::HandleOneChar (CVE-2013-0760)

The following issues were fixed in Firefox 18 and ESR 17.0.1:

    Heap-use-after-free in mozilla::TrackUnionStream::EndTrack (CVE-2013-0761)
    Heap-use-after-free in Mesa, triggerable by resizing a WebGL canvas (CVE-2013-0763)
    Heap-buffer-overflow in gfxTextRun::ShrinkToLigatureBoundaries (CVE-2013-0771)


External Reference:

http://www.mozilla.org/security/announce/2013/mfsa2013-02.html


Acknowledgements:

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

Statement:

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