CVE-2023-34449

2023-06-1421:15:09

CWE-754

CWE-253

[email protected]

web.nvd.nist.gov

cve-2023-34449

ink!

smart contracts

rust

substrate

blockchain

bug

delegate call

patch

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

0.001 Low

EPSS

Percentile

47.1%

JSON

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

Vulners

NVD

Node

paritytechinkRange4.0.0–4.2.1

CPENameOperatorVersion
parity:ink\!parity ink!lt4.2.1

CPE	Name	Operator	Version
parity:ink\!	parity ink!	lt	4.2.1

CNA Affected

[
  {
    "vendor": "paritytech",
    "product": "ink",
    "versions": [
      {
        "version": ">= 4.0.0, < 4.2.1",
        "status": "affected"
      }
    ]
  }
]