CVE-2019-2821 Information disclosure in Java

Medium 5.3 Published 23 Jul 2019 Updated 1 Oct 2024

An unauthenticated attacker can access critical data in Java SE via TLS, requiring human interaction and affecting client-side deployments.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2019-2821?

CVE-2019-2821 is a medium-severity vulnerability in Oracle Jdk, published on 23 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Vulnerability in the Java SE component of Oracle Java SE (subcomponent: JSSE). Supported versions that are affected are Java SE: 11.0.3 and 12.0.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TLS to compromise Java SE. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Java SE accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets (in Java SE 8), that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.0 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N).

Which versions are affected by CVE-2019-2821?

It affects 2 products.

Products include Oracle Jdk, Oracle Jre.

How do I fix CVE-2019-2821?

Upgrade to a fixed version.

Is CVE-2019-2821 being exploited?

There is no known exploitation of CVE-2019-2821 in the wild and no public exploit code.

All Oracle Jdk vulnerabilities

Sources

Also known as CLEANSTART-2026-AE61725, DEBIAN-CVE-2019-2821, GHSA-4664-6235-3f5j, UBUNTU-CVE-2019-2821.