CVE-2020-2593: Medium severity Oracle JDK vulnerability
A flaw was found in the URL class implementation in the Networking component of OpenJDK. An incorrect check to determine if a URLStreamHandler is builtin or not can lead to incorrect URL normalization in certain cases.
Other sources
An unspecified vulnerability in Java SE related to the Java SE Networking component could allow an unauthenticated attacker to cause low confidentiality impact, low integrity impact, and no availability impact.
— IBM
Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Networking). Supported versions that are affected are Java SE: 7u241, 8u231, 11.0.5 and 13.0.1; Java SE Embedded: 8u231. Difficult to exploit 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 update, insert or delete access to some of Java SE, Java SE Embedded accessible data as well as 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 4.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N).
Affected Software
Remediation
Patch Available
Event History
Parent advisories
This vulnerability appears in the following advisories.
Frequently Asked Questions
What is the severity of CVE-2020-2593?
CVE-2020-2593 is rated as a moderate severity vulnerability.
How do I fix CVE-2020-2593?
Fix CVE-2020-2593 by updating to the recommended versions of OpenJDK or Oracle JDK as specified in the vulnerability advisory.
What components are affected by CVE-2020-2593?
CVE-2020-2593 affects the Networking component of OpenJDK.
Can CVE-2020-2593 lead to security issues?
Yes, CVE-2020-2593 can lead to incorrect URL normalization which may cause security implications.
What versions of Java are impacted by CVE-2020-2593?
CVE-2020-2593 impacts several versions of OpenJDK and Oracle JDK including 1.7, 1.8, and 11.