Apache Hadoop CVE-2018-11768 Memory Corruption Vulnerability

Description

Apache Hadoop is prone to a memory-corruption vulnerability. A remote attacker may exploit this issue to crash the server resulting in a denial-of-service condition.

Technologies Affected

• Apache Hadoop 2.0.0 Alpha
• Apache Hadoop 2.0.0-alpha
• Apache Hadoop 2.0.1 Alpha
• Apache Hadoop 2.0.2
• Apache Hadoop 2.0.2 Alpha
• Apache Hadoop 2.0.3 Alpha
• Apache Hadoop 2.0.4 Alpha
• Apache Hadoop 2.0.5
• Apache Hadoop 2.0.5 Alpha
• Apache Hadoop 2.0.6 Alpha
• Apache Hadoop 2.0.6-alpha
• Apache Hadoop 2.1.0 Beta
• Apache Hadoop 2.1.1 Beta
• Apache Hadoop 2.2.0
• Apache Hadoop 2.3.0
• Apache Hadoop 2.4.1
• Apache Hadoop 2.5.0
• Apache Hadoop 2.5.1
• Apache Hadoop 2.5.2
• Apache Hadoop 2.6.0
• Apache Hadoop 2.6.3
• Apache Hadoop 2.6.4
• Apache Hadoop 2.6.5
• Apache Hadoop 2.7.0
• Apache Hadoop 2.7.0-3
• Apache Hadoop 2.7.1
• Apache Hadoop 2.7.2
• Apache Hadoop 2.7.3
• Apache Hadoop 2.7.4
• Apache Hadoop 2.7.5
• Apache Hadoop 2.7.6
• Apache Hadoop 2.7.7
• Apache Hadoop 2.8.0
• Apache Hadoop 2.8.2
• Apache Hadoop 2.8.3
• Apache Hadoop 2.8.4
• Apache Hadoop 2.9.0
• Apache Hadoop 2.9.1
• Apache Hadoop 3.0.0-beta1
• Apache Hadoop 3.0.1
• Apache Hadoop 3.0.2
• Apache Hadoop 3.0.3
• Apache Hadoop 3.1.0
• Apache Hadoop 3.1.1

Recommendations

Block external access at the network boundary, unless external parties require service.
Filter access to the affected computer at the network boundary if global access isn’t needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy a NID sensor between the network perimeter and the affected service. Flag on all requests that appear to be anomalous. Audit logs regularly for evidence of attacks.

Updates are available. Please see the references or vendor advisory for more information.