An error in a routine in Opera's Java class libraries (Windows version) can be exploited by a malicious Java-Applet to cause a DoS (Denial of Service).
The vulnerability can be exploited by constructing a Java-Applet calling the "showDocument" method in the "PluginContext" object with an URL object containing a very long string. This results in an errornous JNI call (Java Native Interface), which crashes the Java VM also crashing Opera.
It has not been proved whether this vulnerability can be exploited to execute arbitrary code on a user's system.
Solution: Disable Java support until Opera Software releases a new version or filter applets in a proxy.
Provided and/or discovered by: Marc Schoenefeld
Original Advisory: http://www.illegalaccess.org/java/OperaCall2.html
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
information to email@example.com
Subject: Opera Browser Java-Applet DoS
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.