Vulnerability Details : CVE-2020-13753
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.
Vulnerability category: Input validation
Products affected by CVE-2020-13753
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*
- cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-13753
0.44%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 75 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-13753
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
10.0
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
3.9
|
6.0
|
NIST |
CWE ids for CVE-2020-13753
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-13753
-
https://www.debian.org/security/2020/dsa-4724
Debian -- Security Information -- DSA-4724-1 webkit2gtkThird Party Advisory
-
https://security.gentoo.org/glsa/202007-11
WebKitGTK+: Multiple vulnerabilities (GLSA 202007-11) — Gentoo securityThird Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00074.html
[security-announce] openSUSE-SU-2020:1064-1: important: Security updateMailing List;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GER2ATKZXDHM7FFYJH67ZPNZZX5VOUVM/
[SECURITY] Fedora 31 Update: webkit2gtk3-2.28.3-1.fc31 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://usn.ubuntu.com/4422-1/
USN-4422-1: WebKitGTK+ vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
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https://www.openwall.com/lists/oss-security/2020/07/10/1
oss-security - WebKitGTK and WPE WebKit Security Advisory WSA-2020-0006Mailing List;Third Party Advisory
-
https://trac.webkit.org/changeset/262368/webkit
Changeset 262368 – WebKitPatch;Vendor Advisory
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