CVE-2023-37902

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Summary

CVECVE-2023-37902
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-07-25 21:15:00 UTC
Updated2023-08-03 16:54:00 UTC
DescriptionVyper is a Pythonic programming language that targets the Ethereum Virtual Machine (EVM). Prior to version 0.3.10, the ecrecover precompile does not fill the output buffer if the signature does not verify. However, the ecrecover builtin will still return whatever is at memory location 0. This means that the if the compiler has been convinced to write to the 0 memory location with specially crafted data (generally, this can happen with a hashmap access or immutable read) just before the ecrecover, a signature check might pass on an invalid signature. Version 0.3.10 contains a patch for this issue.

Risk And Classification

Problem Types: CWE-252

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Vyperlang Vyper All All All All

References

ReferenceSourceLinkTags
ecrecover can return undefined data for invalid signatures · Advisory · vyperlang/vyper · GitHub MISC github.com
Merge pull request from GHSA-f5x6-7qgp-jhf3 · vyperlang/vyper@019a37a · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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