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CVE-2020-13753
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
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..
CVSSv2.0 Score
- Severity
- High
- Base Score
- 7.5/10
- Exploit Score
- 10/10
- Access Vector
- Network
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 6.4/10
- Confidentiality Impact
- Partial
- Availability Impact
- Partial
- Integrity Impact
- Partial
CVSSv3.1 Score
- Severity
- Critical
- Base Score
- 10/10
- Exploit Score
- 3.9/10
- Access Vector
- Network
- Access Complexity
- Low
- Privileges Required
- None
- Impact Score
- 6/10
- Confidentiality Impact
- High
- Availability Impact
- High
- Integrity Impact
- High
- Scope
- Changed
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:* |
Yes
|
- | 2.28.3 | |
cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:* |
Yes
|
- | 2.28.3 | |
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
Yes
|
- | - |
References
- https://www.openwall.com/lists/oss-security/2020/07/10/1
- https://trac.webkit.org/changeset/262368/webkit
- https://www.debian.org/security/2020/dsa-4724
- https://usn.ubuntu.com/4422-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00074.html
- https://security.gentoo.org/glsa/202007-11
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org