Bug 1595024 (CVE-2018-12359)

Summary: CVE-2018-12359 Mozilla: Buffer overflow using computed size of canvas element
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
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2019-06-10 10:30:01 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1590694, 1590696, 1590697, 1598644, 1598645, 1598646, 1607204    
Bug Blocks: 1590698    

Description Doran Moppert 2018-06-26 01:51:26 UTC 
A buffer overflow can occur when rendering canvas content while adjusting the height and width of the `<canvas>` element dynamically, causing data to be written outside of the currently computed boundaries. This results in a potentially exploitable crash.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-16/#CVE-2018-12359
Comment 1 Doran Moppert 2018-06-26 01:51:31 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: Nils
Comment 5 errata-xmlrpc 2018-06-28 16:18:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:2112 https://access.redhat.com/errata/RHSA-2018:2112
Comment 6 errata-xmlrpc 2018-06-28 16:19:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2113 https://access.redhat.com/errata/RHSA-2018:2113
Comment 9 errata-xmlrpc 2018-07-24 21:33:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2252 https://access.redhat.com/errata/RHSA-2018:2252
Comment 10 errata-xmlrpc 2018-07-24 21:34:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:2251 https://access.redhat.com/errata/RHSA-2018:2251