CVE-2020-13753

 

Published at: - 14-07-2020 04:15

Last modified: - 28-01-2023 02:10

Total changes: - 2

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.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://www.openwall.com/lists/oss-security/2020/07/10/1
• https://trac.webkit.org/changeset/262368/webkit
• DSA-4724-Third Party Advisory
• FEDORA-2020-d2736ee493-Mailing List, Third Party Advisory
• USN-4422-1-Third Party Advisory
• openSUSE-SU-2020:1064-Mailing List, Third Party Advisory
• GLSA-202007-11-Third Party Advisory

 

Keywords

NVD

 

CVE-2020-13753

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures