CVE-2019-2786: Low severity Oracle JDK vulnerability
It was discovered that the AccessController class implementation in the Security component of OpenJDK failed, in certain cases, to consider the current context and correctly restrict privileges based on it. An untrusted Java application or applet could use this flaw to bypass certain Java sandbox restrictions.
Other sources
Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: Security). Supported versions that are affected are Java SE: 8u212, 11.0.3 and 12.0.1; Java SE Embedded: 8u211. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, Java SE Embedded, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Java SE, Java SE Embedded 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 can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.0 Base Score 3.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N).
— Launchpad
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2019-2786?
The severity of CVE-2019-2786 is low with a CVSS score of 3.4.
Which versions of Java SE and Java SE Embedded are affected by CVE-2019-2786?
Java SE versions 8u212, 11.0.3, and 12.0.1 are affected, as well as Java SE Embedded version 8u211.
How can an attacker exploit CVE-2019-2786?
An unauthenticated attacker with network access can exploit this vulnerability.
What is the remedy for CVE-2019-2786 on Ubuntu?
For Ubuntu, update to openjdk-12 version 12.0.2+9-1 or openjdk-8 version 8.
Where can I find more information about CVE-2019-2786?
You can find more information about CVE-2019-2786 on the Oracle and Ubuntu security advisories.