CVE ID:	CVE-2020-13753
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.
Test IDs:	1.3.6.1.4.1.25623.1.0.704724
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2020-13753 Debian Security Information: DSA-4724 (Google Search) https://www.debian.org/security/2020/dsa-4724 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GER2ATKZXDHM7FFYJH67ZPNZZX5VOUVM/ https://security.gentoo.org/glsa/202007-11 https://trac.webkit.org/changeset/262368/webkit SuSE Security Announcement: openSUSE-SU-2020:1064 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00074.html https://usn.ubuntu.com/4422-1/