Bug 1479223 (CVE-2017-7801)

Summary: CVE-2017-7801 Mozilla: Use-after-free with marquee during window resizing
Product: [Other] Security Response Reporter: Doran Moppert <dmoppert>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedCC: cschalle, gecko-bugs-nobody, jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2017-08-24 07:28:31 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 1477026    

Description Doran Moppert 2017-08-08 06:52:34 UTC 
A use-after-free vulnerability while re-computing layout for a marquee element during window resizing where the updated style object is freed while still in use. This results in a potentially exploitable crash.


External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-19/#CVE-2017-7801


Acknowledgements:

Name: the Mozilla project
Upstream: Nils
Comment 1 errata-xmlrpc 2017-08-10 23:21:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6

Via RHSA-2017:2456 https://access.redhat.com/errata/RHSA-2017:2456
Comment 2 errata-xmlrpc 2017-08-24 06:46:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:2534 https://access.redhat.com/errata/RHSA-2017:2534