CVE-2020-10018: Use After Free
First published: Mon Mar 02 2020(Updated: )
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: <a href="https://trac.webkit.org/changeset/257292/webkit">https://trac.webkit.org/changeset/257292/webkit</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| WebKitGTK WebKitGTK | <2.28.0 | |
| Wpewebkit Wpe Webkit | <2.28.0 | |
| Fedoraproject Fedora | =30 | |
| Fedoraproject Fedora | =31 | |
| Debian Debian Linux | =10.0 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =19.10 | |
| openSUSE Leap | =15.1 | |
| ubuntu/webkit2gtk | <2.28.0-0ubuntu0.18.04.3 | 2.28.0-0ubuntu0.18.04.3 |
| ubuntu/webkit2gtk | <2.28.0-1ubuntu2 | 2.28.0-1ubuntu2 |
| ubuntu/webkit2gtk | <2.28.0-1ubuntu2 | 2.28.0-1ubuntu2 |
| ubuntu/webkit2gtk | <2.28.0-0ubuntu0.19.10.2 | 2.28.0-0ubuntu0.19.10.2 |
| ubuntu/webkit2gtk | <2.28.0-1ubuntu2 | 2.28.0-1ubuntu2 |
| ubuntu/webkit2gtk | <2.28.0-1ubuntu2 | 2.28.0-1ubuntu2 |
| ubuntu/webkit2gtk | <2.28.0-1ubuntu2 | 2.28.0-1ubuntu2 |
| ubuntu/webkit2gtk | <2.28.0-1ubuntu2 | 2.28.0-1ubuntu2 |
| ubuntu/webkit2gtk | <2.28.0-1ubuntu2 | 2.28.0-1ubuntu2 |
| ubuntu/webkit2gtk | <2.28.0 | 2.28.0 |
| ubuntu/webkit2gtk | <2.28.0-1ubuntu2 | 2.28.0-1ubuntu2 |
| redhat/webkitgtk | <2.28.0 | 2.28.0 |
| debian/webkit2gtk | 2.36.4-1~deb10u1 2.38.6-0+deb10u1 2.42.2-1~deb11u1 2.42.5-1~deb11u1 2.42.2-1~deb12u1 2.42.5-1~deb12u1 2.42.5-1 | |
| debian/wpewebkit | 2.38.6-1~deb11u1 2.38.6-1 2.42.5-1 |
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Reference Links
- https://bugs.webkit.org/show_bug.cgi?id=204342#c21
- https://webkitgtk.org/security/WSA-2020-0003.html
- https://wpewebkit.org/security/WSA-2020-0003.html
- https://www.debian.org/security/2020/dsa-4641
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GLERWAS2LL7SX2GHA2DDZ2PL3QC5OHIF/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DOR5LPL4UASVAR76EIHCL4O2KGDWGC6K/
- https://usn.ubuntu.com/4310-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00008.html
- https://security.gentoo.org/glsa/202006-08
- https://launchpad.net/bugs/cve/CVE-2020-10018
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DOR5LPL4UASVAR76EIHCL4O2KGDWGC6K/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLERWAS2LL7SX2GHA2DDZ2PL3QC5OHIF/
- https://trac.webkit.org/changeset/257292/webkit
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1811722
- https://access.redhat.com/errata/RHSA-2020:4035
- https://access.redhat.com/security/cve/cve-2020-10018
- https://access.redhat.com/errata/RHSA-2020:4451
- https://bugzilla.redhat.com/show_bug.cgi?id=1811721
- https://security-tracker.debian.org/tracker/CVE-2020-10018
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10018
- https://trac.webkit.org/changeset/257292
- https://ubuntu.com/security/notices/USN-4310-1
- https://nvd.nist.gov/vuln/detail/CVE-2020-10018
- https://ubuntu.com/security/CVE-2020-10018
Frequently Asked Questions
What is CVE-2020-10018?
CVE-2020-10018 is a memory corruption vulnerability in WebKitGTK and WPE WebKit versions before 2.28.0.
How severe is CVE-2020-10018?
CVE-2020-10018 has a severity rating of 9.8 out of 10, making it a critical vulnerability.
What is the impact of CVE-2020-10018?
CVE-2020-10018 may lead to arbitrary code execution.
How can I fix CVE-2020-10018?
CVE-2020-10018 has been fixed in version 2.28.0 of WebKitGTK and WPE WebKit with improved memory handling.
Where can I find more information about CVE-2020-10018?
More information about CVE-2020-10018 can be found at the following references: [CVE-2020-10018](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10018), [WebKit Changeset](https://trac.webkit.org/changeset/257292), [WebKitGTK Security Advisory](https://webkitgtk.org/security/WSA-2020-0003.html).
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