Ubuntu.comUB:CVE-2020-13753CVE-2020-13753
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
10 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
0.008 Low
EPSS
Percentile
81.6%
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.
Notes
| Author | Note |
|---|---|
| jdstrand | webkit receives limited support. For details, see https://wiki.ubuntu.com/SecurityTeam/FAQ#webkit webkit in Ubuntu uses the JavaScriptCore (JSC) engine, not V8 |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | webkit2gtk | < 2.28.3-0ubuntu0.18.04.1 | UNKNOWN |
| ubuntu | 19.10 | noarch | webkit2gtk | < 2.28.3-0ubuntu0.19.10.1 | UNKNOWN |
| ubuntu | 20.04 | noarch | webkit2gtk | < 2.28.3-0ubuntu0.20.04.1 | UNKNOWN |
Related
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
10 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
0.008 Low
EPSS
Percentile
81.6%