CVE-2020-13753

CriticalCVSS 10.0/10Last modified Jun 17, 2026

Description

The bubblewrap sandbox of WebKitGTK and WPE WebKit, prior to 2.28.3, failed to properly block access to CLONE_NEWUSER and the TIOCSTI ioctl. CLONE_NEWUSER could potentially be used to confuse xdg-desktop-portal, which allows access outside the sandbox. TIOCSTI can be used to directly execute commands outside the sandbox by writing to the controlling terminal's input buffer, similar to CVE-2017-5226.

Metrics

CVSS 3.1 10.0/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00074.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GER2ATKZXDHM7FFYJH67ZPNZZX5VOUVM/
https://security.gentoo.org/glsa/202007-11Third Party Advisory
https://trac.webkit.org/changeset/262368/webkitPatch, Vendor Advisory
https://usn.ubuntu.com/4422-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4724Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/07/10/1Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00074.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GER2ATKZXDHM7FFYJH67ZPNZZX5VOUVM/
https://security.gentoo.org/glsa/202007-11Third Party Advisory
https://trac.webkit.org/changeset/262368/webkitPatch, Vendor Advisory
https://usn.ubuntu.com/4422-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4724Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/07/10/1Mailing List, Third Party Advisory

Timeline

Published: Jul 14, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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