CVE-2018-2794 Privilege escalation in Java

High 7.7 Published 19 Apr 2018 Updated 3 Oct 2024

An attacker with local access can exploit a Java SE security flaw to achieve full takeover of the runtime environment, impacting confidentiality, integrity, and availability.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2018-2794?

CVE-2018-2794 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 19 Apr 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Vulnerability in the Java SE, JRockit component of Oracle Java SE (subcomponent: Security). Supported versions that are affected are Java SE: 6u181, 7u171, 8u162, 10 and JRockit: R28.3.17. Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where Java SE, JRockit executes to compromise Java SE, JRockit. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, JRockit, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE, JRockit. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVSS 3.0 Base Score 7.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H).

Which versions are affected by CVE-2018-2794?

It affects 14 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Hp Xp7 Command View, Oracle Jdk, Oracle Jre, Oracle Jrockit and 8 more.

How do I fix CVE-2018-2794?

Apply the vendor's patch.

Is CVE-2018-2794 being exploited?

There is no known exploitation of CVE-2018-2794 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as GHSA-8hrg-qfqw-3fgp, MINI-5242-69jw-f735, MINI-fp74-4g39-qc5f, MINI-mq65-h7mq-g565, UBUNTU-CVE-2018-2794.