The CMS_verify function in OpenSSL 0.9.8h through 0.9.8j, when CMS is enabled, does not properly handle errors associated with malformed signed attributes, which allows remote attackers to repudiate a signature that originally appeared to be valid but was actually invalid.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openssl | Openssl | 0.9.8h (including) | 0.9.8h (including) |
| Openssl | Openssl | 0.9.8i (including) | 0.9.8i (including) |
| Openssl | Openssl | 0.9.8j (including) | 0.9.8j (including) |
| Openssl | Ubuntu | upstream | * |