Bug 1837471 (CVE-2020-12267)

Summary: CVE-2020-12267 qt: use-after-free related to QTextMarkdownImporter::insertBlock
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: helio, itamar, jgrulich, jreznik, kasal, kevin, me, rdieter, smparrish, than
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: qt5 5.14.2 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-05-20 14:53:20 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1837480, 1837482, 1837484    
Bug Blocks: 1837485    

Description Marian Rehak 2020-05-19 14:15:11 UTC 
It was possible to end up with a dangling pointer in m_listStack, which could result in use-after-free.
Comment 1 Marian Rehak 2020-05-19 14:16:02 UTC 
Upstream Reference:

https://codereview.qt-project.org/c/qt/qtbase/+/291706
Comment 2 Marian Rehak 2020-05-19 14:18:50 UTC 
Created qt tracking bugs for this issue:

Affects: fedora-all [bug 1837480]


Created qt3 tracking bugs for this issue:

Affects: fedora-all [bug 1837482]
Comment 3 Marian Rehak 2020-05-19 14:20:52 UTC 
Created qt5 tracking bugs for this issue:

Affects: fedora-all [bug 1837484]