CVE-2019-2769: Medium severity Oracle JDK vulnerability
It was discovered that the implementation of the Collections class in the Utilities component of OpenJDK did not limit the amount of memory allocated when creating object instance from a serialized form. A specially-crafted input could cause a Java application to use an excessive amount of memory when deserialized.
Other sources
Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: Utilities). Supported versions that are affected are Java SE: 7u221, 8u212, 11.0.3 and 12.0.1; Java SE Embedded: 8u211. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded. 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 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).
— Launchpad
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2019-2769?
The severity of CVE-2019-2769 is medium with a severity value of 5.3.
What versions of Java SE are affected by CVE-2019-2769?
Java SE versions 7u221, 8u212, 11.0.3, and 12.0.1 are affected by CVE-2019-2769.
Is CVE-2019-2769 exploitable without authentication?
Yes, CVE-2019-2769 is easily exploitable by an unauthenticated attacker with network access.
How can I fix CVE-2019-2769?
To fix CVE-2019-2769, update to Java SE version 12.0.2+9-1 or later.
Where can I find more information about CVE-2019-2769?
You can find more information about CVE-2019-2769 in the following references: [Oracle Security Advisory](http://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html), [Ubuntu Security Notice 4080-1](https://usn.ubuntu.com/4080-1/), [Ubuntu Security Notice 4083-1](https://usn.ubuntu.com/4083-1/).