CVEvulnerability

CVE-2023-34449

5.3 MEDIUM Published 2023-06-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-06-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-253, CWE-754

Description

ink! is an embedded domain specific language to write smart contracts in Rust for blockchains built on the Substrate framework. Starting in version 4.0.0 and prior to version 4.2.1, the return value when using delegate call mechanics, either through `CallBuilder::delegate` or `ink_env::invoke_contract_delegate`, is decoded incorrectly. This bug was related to the mechanics around decoding a call's return buffer, which was changed as part of pull request 1450. Since this feature was only released in ink! 4.0.0, no previous versions are affected. Users who have an ink! 4.x series contract should upgrade to 4.2.1 to receive a patch.

Affected configurations

• parity ink\! (>= 4.0.0 < 4.2.1)

Related

Weakness · CWE (2)

  • CWE-253 Incorrect Check of Function Return Value weakness
  • CWE-754 Improper Check for Unusual or Exceptional Conditions weakness

References