Bug 751935 (CVE-2011-3656)

Summary: CVE-2011-3656 Mozilla: Possible XSS via HTTP 0.9 errors and content-sniffing
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED CURRENTRELEASE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: ddumas, gecko-bugs-nobody, security-response-team, stransky
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2015-07-29 12:52:32 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Huzaifa S. Sidhpurwala 2011-11-08 04:40:26 UTC 
Some non-HTTP protocols running on a server might respond to HTTP requests with an error message, and return (parts of) the incoming request. If web browsers content-sniff data returned withouth HTTP headers, an attacker might be able to send data to such a service, and have the server return an error which the browser interprets as HTML/JS. This opens up for XSS.

Reference:
https://bugzilla.mozilla.org/show_bug.cgi?id=667907
Comment 1 Huzaifa S. Sidhpurwala 2011-11-08 09:02:40 UTC 
Upstream bug says, this is embargoed till 28th Dec 2011. However 3.6.24 likely has the fix, perhaps the bug wont be made public.