CVE-2023-40015

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. `unsafe_add, unsafe_sub, unsafe_mul, unsafe_div, pow_mod256, |, &, ^ (bitwise operators), bitwise_or (deprecated), bitwise_and (deprecated), bitwise_xor (deprecated), raw_call, <, >, <=, >=, ==, !=, in, not in (when lhs and rhs are enums)`. This behaviour becomes a problem when the evaluation of one of the arguments produces side effects that other arguments depend on. The following expressions can produce side-effect: state modifying external call , state modifying internal call, `raw_call`, `pop()` when used on a Dynamic Array stored in the storage, `create_minimal_proxy_to`, `create_copy_of`, `create_from_blueprint`. This issue has not yet been patched. Users are advised to make sure that the arguments of the expression do not produce side effects or, if one does, that no other argument is dependent on those side effects.
References
Configurations

Configuration 1 (hide)

cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:python:*:*

History

08 Sep 2023, 13:58

Type Values Removed Values Added
First Time Vyperlang vyper
Vyperlang
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.3
References (MISC) https://github.com/vyperlang/vyper/security/advisories/GHSA-g2xh-c426-v8mf - (MISC) https://github.com/vyperlang/vyper/security/advisories/GHSA-g2xh-c426-v8mf - Exploit, Third Party Advisory
CPE cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:python:*:*

04 Sep 2023, 18:15

Type Values Removed Values Added
New CVE

Information

Published : 2023-09-04 18:15

Updated : 2024-02-28 20:33


NVD link : CVE-2023-40015

Mitre link : CVE-2023-40015

CVE.ORG link : CVE-2023-40015


JSON object : View

Products Affected

vyperlang

  • vyper
CWE
CWE-670

Always-Incorrect Control Flow Implementation