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4.4

ChainKey Java Code Protection may expose Java code

CVE-2007-0014 · published 19 years ago
Summary

The ChainKey Java Code Protection component can be tricked into writing the program's bytecode to a file, allowing others to decompile and view the original source. This makes proprietary or sensitive Java applications easier to copy or tamper with. Update to a fixed version or disable the custom class loader until a patch is applied.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
sun chainkey_java_code_protection All versions
cpe:2.3:a:sun:chainkey_java_code_protection:*:*:*:*:*:*:*:*
Original advisory text
ChainKey Java Code Protection allows attackers to decompile Java class files via a Java class loader with a modified defineClass method that saves the bytecode to a file before it is passed to the ...
ChainKey Java Code Protection allows attackers to decompile Java class files via a Java class loader with a modified defineClass method that saves the bytecode to a file before it is passed to the JVM.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
4.4 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-310Cryptographic Issues
Timeline
Published17 Jan 2007
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2007-0014 · NVD
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