CVE-2019-2964 : Exploit Details and Defense Strategies

A vulnerability has been discovered in Oracle Java SE, specifically in the Concurrency component of Java SE and Java SE Embedded. The affected versions include Java SE 7u231, 8u221, 11.0.4, and 13, as well as Java SE Embedded 8u221. This vulnerability, although challenging to exploit, could be utilized by an unauthorized attacker who has network access through various protocols to compromise Java SE and Java SE Embedded. If successfully exploited, this vulnerability could potentially allow the attacker to partially deny service in Java SE and Java SE Embedded.

Understanding CVE-2019-2964

This section provides an overview of the vulnerability and its impact.

What is CVE-2019-2964?

CVE-2019-2964 is a vulnerability in the Java SE and Java SE Embedded products of Oracle Java SE, specifically affecting the Concurrency component. It allows an unauthenticated attacker with network access via multiple protocols to compromise the affected systems.

The Impact of CVE-2019-2964

The vulnerability could result in unauthorized access, potentially leading to a partial denial of service in Java SE and Java SE Embedded. Successful exploitation could allow attackers to compromise the affected systems.

Technical Details of CVE-2019-2964

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability in the Concurrency component of Java SE and Java SE Embedded allows unauthorized attackers with network access to compromise the systems, potentially causing a partial denial of service.

Affected Systems and Versions

Java SE: 7u231, 8u221, 11.0.4, 13
Java SE Embedded: 8u221

Exploitation Mechanism

The vulnerability can be exploited by supplying data to APIs in the specified component without using untrusted Java Web Start applications or Java applets, such as through a web service.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2019-2964.

Immediate Steps to Take

Apply security patches provided by Oracle Corporation promptly.
Restrict network access to the affected systems.
Monitor for any unauthorized access attempts.

Long-Term Security Practices

Regularly update Java SE and Java SE Embedded to the latest versions.
Implement network segmentation to limit the impact of potential attacks.
Educate users on safe browsing practices and the risks associated with untrusted applications.

Patching and Updates

Stay informed about security advisories from Oracle Corporation and apply patches as soon as they are released.