Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Webkitgtk | Webkitgtk | < 2.28.3 |
| Wpewebkit | Wpe Webkit | < 2.28.3 |
| Fedoraproject | Fedora | 31 |
| Debian | Debian Linux | 10.0 |
| Canonical | Ubuntu Linux | 18.04 |
| Opensuse | Leap | 15.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00074.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202007-11Third Party Advisory
- https://trac.webkit.org/changeset/262368/webkitPatchVendor 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 ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00074.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202007-11Third Party Advisory
- https://trac.webkit.org/changeset/262368/webkitPatchVendor 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 ListThird Party Advisory
FAQ
What is CVE-2020-13753?
CVE-2020-13753 is a vulnerability with a CVSS score of 10.0 (CRITICAL). 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-desk...
How severe is CVE-2020-13753?
CVE-2020-13753 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-13753?
Check the references section above for vendor advisories and patch information. Affected products include: Webkitgtk Webkitgtk, Wpewebkit Wpe Webkit, Fedoraproject Fedora, Debian Debian Linux, Canonical Ubuntu Linux.