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CVE-2023-34449

5.3 · MEDIUM

ink!

Published Jun 14, 2023CWE-253EPSS 0.97%

Overview

CVE-2023-34449 is a medium-severity vulnerability. It was published on June 14, 2023 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refdocs.rs/ink_env/4.2.0/ink_env/call/struct.CallBuilder.html#method.delegateRefdocs.rs/ink_env/4.2.0/ink_env/fn.invoke_contract_delegate.htmlGitHubgithub.com/paritytech/ink/commit/f1407ee9f87e5f64d467a22d26ee88f61db7f3dbGitHubgithub.com/paritytech/ink/pull/1450GitHubgithub.com/paritytech/ink/security/advisories/GHSA-853p-5678-hv8fRefdocs.rs/ink_env/4.2.0/ink_env/call/struct.CallBuilder.html#method.delegateRefdocs.rs/ink_env/4.2.0/ink_env/fn.invoke_contract_delegate.htmlGitHubgithub.com/paritytech/ink/commit/f1407ee9f87e5f64d467a22d26ee88f61db7f3dbGitHubgithub.com/paritytech/ink/pull/1450GitHubgithub.com/paritytech/ink/security/advisories/GHSA-853p-5678-hv8f

How CyberStrike helps

Frequently asked questions

What is CVE-2023-34449?

CVE-2023-34449 is a medium-severity vulnerability. It was published on June 14, 2023 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2023-34449?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-34449?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-34449?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-34449 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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