Bug 1811721 (CVE-2020-10018) - CVE-2020-10018 webkitgtk: Use-after-free issue in accessibility/AXObjectCache.cpp
Summary: CVE-2020-10018 webkitgtk: Use-after-free issue in accessibility/AXObjectCache...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-10018
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1811722 1818658 1818659 1818660
Blocks: 1811723
TreeView+ depends on / blocked
 
Reported: 2020-03-09 15:39 UTC by Pedro Sampaio
Modified: 2020-11-04 01:05 UTC (History)
4 users (show)

Fixed In Version: webkitgtk 2.28.0
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2020-09-29 22:00:05 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4035 0 None None None 2020-09-29 20:46:00 UTC
Red Hat Product Errata RHSA-2020:4451 0 None None None 2020-11-04 01:05:01 UTC

Description Pedro Sampaio 2020-03-09 15:39:24 UTC 
accessibility/AXObjectCache.cpp in WebKit, as used in WebKitGTK through 2.26.4 and WPE WebKit through 2.26.4, allows a denial of service (application crash) because maintenance of the m_deferredFocusedNodeChange data structure mishandles removal.

Upstream patch:

https://trac.webkit.org/changeset/257292/webkit
Comment 1 Pedro Sampaio 2020-03-09 15:40:24 UTC 
Created webkit2gtk3 tracking bugs for this issue:

Affects: fedora-all [bug 1811722]
Comment 2 Michael Catanzaro 2020-03-12 14:08:58 UTC 
Note this was misclassified as denial of service, but it's actually a use after free, which we classify as remote code execution.
Comment 7 errata-xmlrpc 2020-09-29 20:45:58 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:4035 https://access.redhat.com/errata/RHSA-2020:4035
Comment 8 Product Security DevOps Team 2020-09-29 22:00:05 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-10018
Comment 9 errata-xmlrpc 2020-11-04 01:04:58 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4451 https://access.redhat.com/errata/RHSA-2020:4451
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