Users are advised to update when possible.ĬVE-2024-0645 Buffer overflow vulnerability in Explorer++ affecting version 1.3.5.531. This issue has been addressed in commit `55e18f6d1` which will be included in future releases. However, certainly not all usages of concat will result in overwritten valid data as we require it to be in an internal function and close to the return statement where other memory allocations don't occur. The overflow is length-dependent and thus it might go unnoticed during contract testing. The buffer overflow can result in the change of semantics of the contract. A contract search was performed and no vulnerable contracts were found in production. The root cause is that the `build_IR` for `concat` doesn't properly adhere to the API of copy functions (for `>=0.3.2` the `copy_bytes` function). The `concat` built-in can write over the bounds of the memory buffer that was allocated for it and thus overwrite existing valid data. CVE-2024-22419 Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |