CVE-2018-2603: Medium severity Oracle JDK vulnerability
It was discovered that the DerValue class in the Libraries component of OpenJDK failed to sufficiently limit the amount of memory allocated when reading DER (Distinguished Encoding Rules) encoded input. It could allocate a large amount of memory even when processing short input. A remote attacker could possibly use this flaw to make a Java application use an excessive amount of memory if it parsed attacker-supplied DER encoded input.
Other sources
Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: Libraries). Supported versions that are affected are Java SE: 6u171, 7u161, 8u152 and 9.0.1; Java SE Embedded: 8u151; JRockit: R28.3.16. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. 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, JRockit. Note: This vulnerability 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 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 CVE-2018-2603?
CVE-2018-2603 is a vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: Libraries).
What are the affected versions of Java SE?
The affected versions of Java SE are 6u171, 7u161, 8u152, and 9.0.1.
How can an attacker exploit CVE-2018-2603?
An unauthenticated attacker can easily exploit CVE-2018-2603.
What is the severity of CVE-2018-2603?
The severity of CVE-2018-2603 is medium, with a severity value of 5.3.
Where can I find more information about CVE-2018-2603?
You can find more information about CVE-2018-2603 on the MITRE CVE website.