by Kastro
Paper/Archive/CVE-2020-13753

CVE-2020-13753

mitre — 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.

EPSS 3%CVSS 10.0
critical.is priorityof 100
48
CVSS 10.0 (NVD)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 88.4.884 × 2017.7No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

NVD10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References

reftrac.webkit.org/changeset/262368/webkitrefopenwall.com/lists/oss-security/2020/07/10/1advisorydebian.org/security/2020/dsa-4724advisorylists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GER2ATKZXDHM7FFYJH67ZPNZZX5VOUVMadvisoryusn.ubuntu.com/4422-1advisorylists.opensuse.org/opensuse-security-announce/2020-07/msg00074.htmladvisorysecurity.gentoo.org/glsa/202007-11