Pluf has discovered a vulnerability in Sun Java JDK/SDK, which potentially can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to an input validation error when extracting compressed ".jar" archives with the Jar utility. This makes it possible to have files extracted to arbitrary locations outside the specified directory using the "../" directory traversal sequence.
The vulnerability has been confirmed in Sun Java JDK 1.5.0_02 and Sun Java SDK 1.4.2_08. Other versions may also be affected.
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Subject: Sun Java JDK/SDK Jar Directory Traversal Vulnerability
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