Bug 1670631 (CVE-2018-18500)

Summary: CVE-2018-18500 Mozilla: Use-after-free parsing HTML5 stream
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, stransky, yozone
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2019-06-10 10:46:40 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1668153, 1668154, 1668155, 1668156, 1670636, 1670637, 1670638, 1670639, 1670640    
Bug Blocks: 1668151, 1670486    

Description Doran Moppert 2019-01-29 23:18:24 UTC
A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. 



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2019-02/#CVE-2018-18500

Comment 1 Doran Moppert 2019-01-29 23:18:27 UTC
Acknowledgments:

Name: the Mozilla project
Upstream: Yaniv Frank (SophosLabs)

Comment 7 errata-xmlrpc 2019-01-30 17:38:53 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:0218 https://access.redhat.com/errata/RHSA-2019:0218

Comment 8 errata-xmlrpc 2019-01-30 17:56:18 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:0219 https://access.redhat.com/errata/RHSA-2019:0219

Comment 9 errata-xmlrpc 2019-02-04 20:41:47 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:0269 https://access.redhat.com/errata/RHSA-2019:0269

Comment 10 errata-xmlrpc 2019-02-04 20:42:01 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:0270 https://access.redhat.com/errata/RHSA-2019:0270