CVE-2021-38153
September 22, 2021
Some components in Apache Kafka use `Arrays.equals` to validate a password or key, which is vulnerable to timing attacks that make brute force attacks for such credentials more likely to be successful. Users should upgrade to 2.8.1 or higher, or 3.0.0 or higher where this vulnerability has been fixed. The affected versions include Apache Kafka 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.6.0, 2.6.1, 2.6.2, 2.7.0, 2.7.1, and 2.8.0.
Affected Packages
org.apache.kafka:kafka-clients (JAVA):
Affected version(s) >=2.0.0 <2.6.3Fix Suggestion:
Update to version 2.6.3org.apache.kafka:kafka_2.13 (JAVA):
Affected version(s) =2.8.0 <2.8.1Fix Suggestion:
Update to version 2.8.1org.apache.kafka:kafka-clients (JAVA):
Affected version(s) >=2.8.0 <2.8.1Fix Suggestion:
Update to version 2.8.1org.apache.kafka:kafka_2.12 (JAVA):
Affected version(s) >=2.8.0 <2.8.1Fix Suggestion:
Update to version 2.8.1org.apache.kafka:kafka_2.12 (JAVA):
Affected version(s) >=2.7.0 <2.7.2Fix Suggestion:
Update to version 2.7.2org.apache.kafka:kafka_2.12 (JAVA):
Affected version(s) >=2.0.0 <2.6.3Fix Suggestion:
Update to version 2.6.3org.apache.kafka:kafka_2.13 (JAVA):
Affected version(s) >=2.4.0 <2.6.3Fix Suggestion:
Update to version 2.6.3org.apache.kafka:kafka_2.13 (JAVA):
Affected version(s) >=2.7.0 <2.7.2Fix Suggestion:
Update to version 2.7.2org.apache.kafka:kafka-clients (JAVA):
Affected version(s) >=2.7.0 <2.7.2Fix Suggestion:
Update to version 2.7.2Related Resources (21)
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Contact UsCVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
ATTACKED
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Exploit Maturity
HIGH
CVSS v2
Base Score:
4.3
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Weakness Type (CWE)
Observable Discrepancy
EPSS
Base Score:
1.06