CVE-2022-35936

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Summary

CVECVE-2022-35936
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-05 13:15:00 UTC
Updated2022-08-13 00:59:00 UTC
DescriptionEthermint is an Ethereum library. In Ethermint running versions before `v0.17.2`, the contract `selfdestruct` invocation permanently removes the corresponding bytecode from the internal database storage. However, due to a bug in the `DeleteAccount`function, all contracts that used the identical bytecode (i.e shared the same `CodeHash`) will also stop working once one contract invokes `selfdestruct`, even though the other contracts did not invoke the `selfdestruct` OPCODE. This vulnerability has been patched in Ethermint version v0.18.0. The patch has state machine-breaking changes for applications using Ethermint, so a coordinated upgrade procedure is required. A workaround is available. If a contract is subject to DoS due to this issue, the user can redeploy the same contract, i.e. with identical bytecode, so that the original contract's code is recovered. The new contract deployment restores the `bytecode hash -> bytecode` entry in the internal state.

Risk And Classification

Problem Types: CWE-668

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Crypto Cronos All All All All
Application Evmos Ethermint All All All All
Application Evmos Evmos All All All All
Application Kava Kava All All All All

References

ReferenceSourceLinkTags
Merge pull request from GHSA-f92v-grc2-w2fg · evmos/ethermint@1447418 · GitHub MISC github.com
ethermint/statedb.go at c9d42d667b753147977a725e98ed116c933c76cb · evmos/ethermint · GitHub MISC github.com
DoS through unintended Contract Selfdestruct · Advisory · evmos/ethermint · GitHub CONFIRM github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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