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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-07-14T13:07:18

Updated: 2024-08-04T12:25:16.519Z

Reserved: 2020-06-01T00:00:00

Link: CVE-2020-13753

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-07-14T14:15:17.603

Modified: 2023-11-07T03:16:57.953

Link: CVE-2020-13753

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-07-10T00:00:00Z

Links: CVE-2020-13753 - Bugzilla