CVE-2021-20218
March 16, 2021
A flaw was found in the fabric8 kubernetes-client in version 4.2.0 and after. This flaw allows a malicious pod/container to cause applications using the fabric8 kubernetes-client "copy" command to extract files outside the working path. The highest threat from this vulnerability is to integrity and system availability. This has been fixed in kubernetes-client-4.13.2 kubernetes-client-5.0.2 kubernetes-client-4.11.2 kubernetes-client-4.7.2
Affected Packages
io.fabric8:kubernetes-client (JAVA):
Affected version(s) >=5.0.0 <5.0.2Fix Suggestion:
Update to version 5.0.2io.fabric8:kubernetes-client (JAVA):
Affected version(s) >=4.2.0 <4.7.2Fix Suggestion:
Update to version 4.7.2io.fabric8:kubernetes-client (JAVA):
Affected version(s) >=4.8.0 <4.11.2Fix Suggestion:
Update to version 4.11.2io.fabric8:kubernetes-client (JAVA):
Affected version(s) >=4.12.0 <4.13.2Fix Suggestion:
Update to version 4.13.2Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.4
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
CVSS v2
Base Score:
5.8
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
EPSS
Base Score:
0.59
