CVE-2024-34360 (CVSS 8.2)

Description

go-spacemesh is a Go implementation of the Spacemesh protocol full node. Nodes can publish activations transactions (ATXs) which reference the incorrect previous ATX of the Smesher that created the ATX. ATXs are expected to form a single chain from the newest to the first ATX ever published by an identity. Allowing Smeshers to reference an earlier (but not the latest) ATX as previous breaks this protocol rule and can serve as an attack vector where Nodes are rewarded for holding their PoST data for less than one epoch but still being eligible for rewards. This vulnerability is fixed in go-spacemesh 1.5.2-hotfix1 and Spacemesh API 1.37.1.

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CVSS v3.1 Score

8.2

HIGH

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

Weakness Type (CWE)

CWE-754 CWE-754

References

Other References

https://github.com/spacemeshos/api/commit/1d5bd972bbe225d024c3e0ae5214ddb6b481716e https://github.com/spacemeshos/go-spacemesh/commit/9aff88d54be809ac43d60e8a8b4d65359c356b87 https://github.com/spacemeshos/go-spacemesh/security/advisories/GHSA-jcqq-g64v-gcm7 https://github.com/spacemeshos/api/commit/1d5bd972bbe225d024c3e0ae5214ddb6b481716e https://github.com/spacemeshos/go-spacemesh/commit/9aff88d54be809ac43d60e8a8b4d65359c356b87 https://github.com/spacemeshos/go-spacemesh/security/advisories/GHSA-jcqq-g64v-gcm7

Frequently Asked Questions

What is CVE-2024-34360? +

go-spacemesh is a Go implementation of the Spacemesh protocol full node. Nodes can publish activations transactions (ATXs) which reference the incorrect previous ATX of the Smesher that created the ATX. ATXs are expected to form a single chain from the newest to the first ATX ever published by an identity. Allowing Smeshers to reference an earlier (but not the latest) ATX as previous breaks this protocol rule and can serve as an attack vector where Nodes are rewarded for holding their PoST data for less than one epoch but still being eligible for rewards. This vulnerability is fixed in go-spacemesh 1.5.2-hotfix1 and Spacemesh API 1.37.1. It has a CVSS v3.1 base score of 8.2 (HIGH).

How severe is CVE-2024-34360? +

CVE-2024-34360 has a CVSS v3.1 score of 8.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2024-34360? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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