CVE-2021-2432 Denial of service in Java SE JDK and JRE
An unauthenticated attacker can cause a partial denial of service in Java SE via the JNDI component.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-2432?
CVE-2021-2432 is a low-severity denial of service vulnerability in Mcafee Epolicy Orchestrator, published on 20 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Vulnerability in the Java SE product of Oracle Java SE (component: JNDI). The supported version that is affected is Java SE: 7u301. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.1 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).
Which versions are affected by CVE-2021-2432?
3 open source packages ship an affected version, including java, java-min and jre. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
java Bitnami | All versions | 1.7.0, 7.0.311 |
java-min Bitnami | All versions | 1.7.0, 7.0.311 |
jre Bitnami | All versions | 1.7.0, 7.0.311 |
Products include Mcafee Epolicy Orchestrator, Oracle Jdk.
How do I fix CVE-2021-2432?
Upgrade java to a fixed version for your release line: 1.7.0 or 7.0.311.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-2432 being exploited?
There is no known exploitation of CVE-2021-2432 in the wild and no public exploit code.
Other vulnerabilities in Mcafee Epolicy Orchestrator
Sources
Also known as BIT-java-2021-2432, BIT-java-min-2021-2432, BIT-jre-2021-2432, GHSA-3xjg-p34v-7jgf.