CVE-2022-35936
This vulnerability has been patched in Ethermint version v0.18.0.
Does this matter?
Lower severity and a low EPSS score (1.40%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 1.40% probability · 71th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-668
- Affected
- evmos/ethermint · kava/kava · crypto/cronos · evmos/evmos
- Source
- security-advisories@github.com
References
- https://github.com/evmos/ethermint/blob/c9d42d667b753147977a725e98ed116c933c76cb/x/evm/keeper/statedb.go#L199-L203Exploit, Third Party Advisory
- https://github.com/evmos/ethermint/commit/144741832007a26dbe950512acbda4ed95b2a451Patch, Third Party Advisory
- https://github.com/evmos/ethermint/security/advisories/GHSA-f92v-grc2-w2fgThird Party Advisory
- https://github.com/evmos/ethermint/blob/c9d42d667b753147977a725e98ed116c933c76cb/x/evm/keeper/statedb.go#L199-L203Exploit, Third Party Advisory
- https://github.com/evmos/ethermint/commit/144741832007a26dbe950512acbda4ed95b2a451Patch, Third Party Advisory
- https://github.com/evmos/ethermint/security/advisories/GHSA-f92v-grc2-w2fgThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.