CVE-2023-34449

CVSS Score of 10 (low)

Details

Published Jun 14, 2023
Updated: Jun 28, 2023
CWE ID 754
CWE ID 253

Summary

CVE-2023-34449 is a vulnerability affecting ink!, an embedded domain-specific language used to write smart contracts in Rust for blockchains built on the Substrate framework. The bug occurs in versions 4.0.0 to 4.2.1, where the return value when using delegate call mechanics is decoded incorrectly. This issue was resolved in ink! 4.2.1, and users with ink! 4.x series contracts are advised to upgrade to this version to receive the patch. The vulnerability has a medium severity rating and a CVSS score of 5.3, indicating low integrity impact and no confidentiality impact, with no privileges required for exploitation.

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