| Package | Affected versions | Patched versions |
|---|---|---|
| wss4j | ≥ 3.0.0, < 3.0.6≥ 4.0.0, < 4.0.2< 2.4.4 | 3.0.64.0.22.4.4 |
An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory. Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.
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