Ubuntu.comUB:CVE-2019-20477CVE-2019-20477
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access 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
0.175 Low
EPSS
Percentile
96.1%
PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and
load_all functions because of a class deserialization issue, e.g., Popen is
a class in the subprocess module. NOTE: this issue exists because of an
incomplete fix for CVE-2017-18342.
Notes
| Author | Note |
|---|---|
| mdeslaur | CVE-2017-18342 resulted in the load() function being deprecated in 5.1+ in eoan and later. It did not get fixed in previous release because of compatibility issues. This CVE therefore only really applies to eoan and later. |
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access 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
0.175 Low
EPSS
Percentile
96.1%