Bug 1039428 (CVE-2013-6673)

Summary: CVE-2013-6673 Mozilla: Trust settings for built-in roots ignored during EV certificate validation (MFSA 2013-113)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: security-response-team
Target Milestone: ---Keywords: Reopened, Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2013-12-11 04:39:28 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 1030244    

Description Huzaifa S. Sidhpurwala 2013-12-09 04:31:43 UTC 
Firefox user Sijie Xia reported that if a user explicitly removes the trust for extended validation (EV) capable root certificates in the certificate manager, the change is not properly used when validating EV certificates, causing the setting to be ignored. This removes the ability of users to explicitly untrust root certificates from specific certificate authorities.

This flaw does not affect certificates that are not extended validation certificates. All other certificate validation checks do occur, the error is the assumption that if Mozilla trusted the certificate, the user would also.


External Reference:

http://www.mozilla.org/security/announce/2013/mfsa2013-113.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Sijie Xia as the original reporter.
Comment 1 Huzaifa S. Sidhpurwala 2013-12-11 04:39:28 UTC 
Statement:

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