CVE-2023-21968: Low severity Oracle GraalVM vulnerability
It was discovered that the UnixUriUtils class in the Libraries component of OpenJDK failed to sanitize strings containing slash characters when converting URIs to file system paths. An untrusted Java application or applet could use this flaw to bypass certain Java sandbox restrictions by creating Path objects with invalid paths.
Other sources
Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Libraries). Supported versions that are affected are Oracle Java SE: 8u361, 8u361-perf, 11.0.18, 17.0.6, 20; Oracle GraalVM Enterprise Edition: 20.3.9, 21.3.5 and 22.3.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, 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 3.1 Base Score 3.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2023-21968?
CVE-2023-21968 has a low integrity impact severity level.
How do I fix CVE-2023-21968?
To remediate CVE-2023-21968, update to the latest patched versions of Oracle Java SE or GraalVM depending on your deployment.
Which versions of Oracle Java are affected by CVE-2023-21968?
CVE-2023-21968 affects multiple versions of Oracle Java SE and GraalVM, including early versions of OpenJDK and GraalVM prior to their updates.
Can unprivileged users exploit CVE-2023-21968?
Yes, CVE-2023-21968 can potentially be exploited by unauthenticated attackers.
Is there a known exploit for CVE-2023-21968?
Currently, there are no known public exploits for CVE-2023-21968.