CVE-2023-46232

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Summary

CVECVE-2023-46232
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-10-25 22:15:00 UTC
Updated2023-11-06 16:52:00 UTC
Descriptionera-compiler-vyper is the EraVM Vyper compiler for zkSync Era, a layer 2 rollup that uses zero-knowledge proofs to scale Ethereum. Prior to era-compiler-vype version 1.3.10, a bug prevented the initialization of the first immutable variable for Vyper contracts meeting certain criteria. The problem arises when there is a String or Array with more 256-bit words allocated than initialized. It results in the second word’s index unset, that is effectively set to 0, so the first immutable value with the actual 0 index is overwritten in the ImmutableSimulator. Version 1.3.10 fixes this issue by setting all indexes in advance. The problem will go away, but it will get more expensive if the user allocates a lot of uninitialized space, e.g. `String[4096]`. Upgrading and redeploying affected contracts is the only way of working around the issue.

Risk And Classification

Problem Types: NVD-CWE-noinfo

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Matter-labs Zkvyper All All All All

References

ReferenceSourceLinkTags
First Immutable Variable Initialization · Advisory · matter-labs/era-compiler-vyper · GitHub MISC github.com
github.com/matter-labs/era-system-contracts/blob/main/contracts/Immutabl... MISC github.com
Release v1.3.10 · matter-labs/era-compiler-vyper@8be305a · 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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