CVE-2023-41052

Vyper is a Pythonic Smart Contract Language. In affected versions the order of evaluation of the arguments of the builtin functions uint256addmod, uint256mulmod, ecadd and ecmul does not follow source order. This behaviour is problematic when the evaluation of one of the arguments produces side...

Design/Logic Flaw

Vyper is a Pythonic Smart Contract Language. For the following probably non-exhaustive list of expressions, the compiler evaluates the arguments from right to left instead of left to right. unsafeadd, unsafesub, unsafemul, unsafediv, powmod256, |, &, ^ bitwise operators, bitwiseor deprecated,...

PYSEC-2023-168

Vyper is a Pythonic Smart Contract Language. In affected versions the order of evaluation of the arguments of the builtin functions uint256addmod, uint256mulmod, ecadd and ecmul does not follow source order. This behaviour is problematic when the evaluation of one of the arguments produces side...

CVE-2023-40015 Vyper: reversed order of side effects for some operations

Vyper is a Pythonic Smart Contract Language. For the following probably non-exhaustive list of expressions, the compiler evaluates the arguments from right to left instead of left to right. unsafeadd, unsafesub, unsafemul, unsafediv, powmod256, |, &, ^ bitwise operators, bitwiseor deprecated,...

CVE-2023-41052 Vyper: incorrect order of evaluation of side effects for some builtins

Vyper is a Pythonic Smart Contract Language. In affected versions the order of evaluation of the arguments of the builtin functions uint256addmod, uint256mulmod, ecadd and ecmul does not follow source order. This behaviour is problematic when the evaluation of one of the arguments produces side...

CVE-2023-41052

Vyper CVE-2023-41052 affects the Pythonic smart contract language Vyper. In affected versions, the evaluation order of arguments to builtins uint256_addmod, uint256_mulmod, ecadd, and ecmul does not follow source order, which can cause side effects in one argument to be relied upon by others. The...

CVE-2023-39363 Vyper incorrectly allocated named re-entrancy locks

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine EVM. In versions 0.2.15, 0.2.16 and 0.3.0, named re-entrancy locks are allocated incorrectly. Each function using a named re-entrancy lock gets a unique lock regardless of the key, allowing cross-function re-entrancy in...

CVE-2023-32059 Vyper vulnerable to incorrect ordering of arguments for kwargs passed to internal calls

Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, internal calls with default arguments are compiled incorrectly. Depending on the number of arguments provided in the call, the defaults are added not right-to-left, but left-to-right. If the type...

CVE-2023-31146 Vyper vulnerable to OOB DynArray access when array is on both LHS and RHS of an assignment

Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, during codegen, the length word of a dynarray is written before the data, which can result in out-of-bounds array access in the case where the dynarray is on both the lhs and rhs of an assignment...

CVE-2023-30837 Vyper storage allocator overflow

Vyper is a pythonic smart contract language for the EVM. The storage allocator does not guard against allocation overflows in versions prior to 0.3.8. An attacker can overwrite the owner variable. This issue was fixed in version 0.3.8...

Design/Logic Flaw

Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the rawcall with revertonfailure=False and maxoutsize=0 receives the wrong response from rawcall. Depending on the...

CVE-2023-30629 Vyper's raw_call with outsize=0 and revert_on_failure=False returns incorrect success value

Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the rawcall with revertonfailure=False and maxoutsize=0 receives the wrong response from rawcall. Depending on the...

CVE-2022-29255 Multiple evaluation of contract address in call in vyper

Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions prior to 0.3.4 when a calling an external contract with no return value, the contract address including side effects could be evaluated twice. This may result in incorrect outcomes for contracts. This issue...

CVE-2022-24788

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. Versions of vyper prior to 0.3.2 suffer from a potential buffer overrun. Importing a function from a JSON interface which returns bytes generates bytecode which does not clamp bytes length, potentially resulting in a...

CVE-2022-24788 Buffer overflow in Vyper

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. Versions of vyper prior to 0.3.2 suffer from a potential buffer overrun. Importing a function from a JSON interface which returns bytes generates bytecode which does not clamp bytes length, potentially resulting in a...

CVE-2022-24788 Buffer overflow in Vyper

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. Versions of vyper prior to 0.3.2 suffer from a potential buffer overrun. Importing a function from a JSON interface which returns bytes generates bytecode which does not clamp bytes length, potentially resulting in a...

Design/Logic Flaw

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. In version 0.3.1 and prior, bytestrings can have dirty bytes in them, resulting in the word-for-word comparisons giving incorrect results. Even without dirty nonzero bytes, two bytestrings can compare to equal if one en...

CVE-2022-24787 Incorrect Comparison in Vyper

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. In version 0.3.1 and prior, bytestrings can have dirty bytes in them, resulting in the word-for-word comparisons giving incorrect results. Even without dirty nonzero bytes, two bytestrings can compare to equal if one en...

CVE-2021-41121

Vyper is a Pythonic Smart Contract Language for the EVM. In affected versions when performing a function call inside a literal struct, there is a memory corruption issue that occurs because of an incorrect pointer to the the top of the stack. This issue has been resolved in version 0.3.0...

CVE-2021-41121

Vyper is a Pythonic Smart Contract Language for the EVM. In affected versions when performing a function call inside a literal struct, there is a memory corruption issue that occurs because of an incorrect pointer to the the top of the stack. This issue has been resolved in version 0.3.0...