rust-openssl provides OpenSSL bindings for the Rust programming language. From to before 0.10.78, aes::unwrap_key() contains an incorrect assertion: it checks that out.len() + 8 <= in_.len(), but this condition is reversed. The intended invariant is out.len() >= in_.len() - 8, ensuring the output buffer is large enough. Because of the inverted check, the function only accepts buffers at or below the minimum required size and rejects larger ones. If a smaller buffer is provided the function will write past the end of out by in_.len() - 8 - out.len() bytes, causing an out-of-bounds write from a safe public function. This vulnerability is fixed in 0.10.78.
| Vendor | Product | Versions |
|---|---|---|
| rust-openssl_project | rust-openssl | rust/openssl: >= 0.10.24, < 0.10.78 |
Downstream vendors/products affected by this vulnerability
| Vendor | Product | Source | Confidence |
|---|---|---|---|
| oracle | oracle linux | cert_advisory | 90% |
Updated severity to CRITICAL, marked as actively exploited, and corrected exploit availability to false.
Initial creation
