Bug 1443310 (CVE-2017-5448)

Summary: CVE-2017-5448 Mozilla: Out-of-bounds write in ClearKeyDecryptor (MFSA 2017-11, MFSA 2017-12)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: cschalle, jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2017-05-12 06:00:46 UTC Type: ---
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Bug Blocks: 1437814    

Description Huzaifa S. Sidhpurwala 2017-04-19 05:51:45 UTC 
An out-of-bounds write in <code>ClearKeyDecryptor</code> while decrypting some Clearkey-encrypted media content. This allows for the writing of arbitrary data within memory, resulting in a potentially exploitable crash.

External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-11/#CVE-2017-5448


Acknowledgements:

Name: the Mozilla project
Upstream: Anonymous working with Trend Micro's Zero Day Initiative
Comment 1 errata-xmlrpc 2017-04-20 08:22:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:1104 https://access.redhat.com/errata/RHSA-2017:1104
Comment 2 errata-xmlrpc 2017-04-21 00:50:52 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1106 https://access.redhat.com/errata/RHSA-2017:1106