Oracle Java SE/Java SE Embedded/GraalVM CVE-2020-2604 Remote Security Vulnerability

Description

Oracle Java SE/Java SE Embedded/GraalVM are prone to a remote security vulnerability. The vulnerability can be exploited over multiple protocols. This issue affects the ‘Serialization’ component. This vulnerability affects the following supported versions: Java SE: 7u241, 8u231, 11.0.5, 13.0.1; Java SE Embedded: 8u231

Technologies Affected

• Oracle GraalVM Enterprise Edition 19.3.0.2
• Oracle JDK(Linux Production Release) 1.7.0 Update 241
• Oracle JDK(Linux Production Release) 1.8.0 Update 231
• Oracle JDK(Linux Production Release) 11.0.5
• Oracle JDK(Linux Production Release) 13.0.1
• Oracle JDK(Solaris Production Release) 1.7.0 Update 241
• Oracle JDK(Solaris Production Release) 1.8.0 Update 231
• Oracle JDK(Solaris Production Release) 11.0.5
• Oracle JDK(Solaris Production Release) 13.0.1
• Oracle JDK(Windows Production Release) 1.7.0 Update 241
• Oracle JDK(Windows Production Release) 1.8.0 Update 231
• Oracle JDK(Windows Production Release) 11.0.5
• Oracle JDK(Windows Production Release) 13.0.1
• Oracle JRE(Linux Production Release) 1.7.0 Update 241
• Oracle JRE(Linux Production Release) 1.8.0 Update 231
• Oracle JRE(Linux Production Release) 11.0.5
• Oracle JRE(Linux Production Release) 13.0.1
• Oracle JRE(Solaris Production Release) 1.7.0 Update 241
• Oracle JRE(Solaris Production Release) 1.8.0 Update 231
• Oracle JRE(Solaris Production Release) 11.0.5
• Oracle JRE(Solaris Production Release) 13.0.1
• Oracle JRE(Windows Production Release) 1.7.0 Update 241
• Oracle JRE(Windows Production Release) 1.8.0 Update 231
• Oracle JRE(Windows Production Release) 11.0.5
• Oracle JRE(Windows Production Release) 13.0.1
• Oracle Java SE Embedded 8u231

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 NIDS to monitor network traffic for signs of anomalous or suspicious activity including unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Do not follow links provided by unknown or untrusted sources.
Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.

Set web browser security to disable the execution of script code or active content.
Disabling the execution of script code in the browser may limit exposure to this and other latent vulnerabilities.

Run all software as a nonprivileged user with minimal access rights.
To limit the impact of latent vulnerabilities, configure applications to run as a nonadministrative user with minimal access rights.

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