Ubuntu.comUB:CVE-2020-1747CVE-2020-1747
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
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.006 Low
EPSS
Percentile
77.5%
A vulnerability was discovered in the PyYAML library in versions before
5.3.1, where it is susceptible to arbitrary code execution when it
processes untrusted YAML files through the full_load method or with the
FullLoader loader. Applications that use the library to process untrusted
input may be vulnerable to this flaw. An attacker could use this flaw to
execute arbitrary code on the system by abusing the python/object/new
constructor.
Bugs
Notes
| Author | Note |
|---|---|
| mdeslaur | FullLoader was introduced in 5.1. FullLoader should not be used on untrusted input, setting priority to low. |
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
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.006 Low
EPSS
Percentile
77.5%