CVE Vulnerability

CVE-2022-35936

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.

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://github.com/evmos/ethermint/blob/c9d42d667b753147977a725e98ed116c933c76cb/x/evm/keeper/statedb.go#L199-L203 Exploit Third Party Advisory
https://github.com/evmos/ethermint/commit/144741832007a26dbe950512acbda4ed95b2a451 Patch Third Party Advisory
https://github.com/evmos/ethermint/security/advisories/GHSA-f92v-grc2-w2fg Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:evmos:ethermint:*:*:*:*:*:*:*:*
cpe:2.3:a:kava:kava:*:*:*:*:*:*:*:*
cpe:2.3:a:crypto:cronos:*:*:*:*:*:*:*:*
cpe:2.3:a:evmos:evmos:*:*:*:*:*:*:*:*
Information

Published : 2022-08-05 01:15

Updated : 2022-08-13 12:59

NVD link : CVE-2022-35936

Mitre link : CVE-2022-35936

Products Affected
No products.
CWE
CWE-668