Vulnerability · Published Sep 24, 2022 · Assigned by GitHub_M
CVE-2022-36025Incorrect Conversion between Numeric Types in Besu Ethereum Client
Critical 9.1
In plain English
A critical-severity security flaw in besu from hyperledger. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Besu is a Java-based Ethereum client. In versions newer than 22.1.3 and prior to 22.7.1, Besu is subject to an Incorrect Conversion between Numeric Types. An error in 32 bit signed and unsigned types in the calculation of available gas in the CALL operations (including DELEGATECALL) results in incorrect gas being passed into called contracts and incorrect gas being returned after call execution. Where the amount of gas makes a difference in the success or failure, or if the gas is a negative 64 bit value, the execution will result in a different state root than expected, resulting in a consensus failure in networks with multiple EVM implementations. In networks with a single EVM implementation this can be used to execute with significantly more gas than then transaction requested, possibly exceeding gas limitations. This issue is patched in version 22.7.1. As a workaround, reverting to version 22.1.3 or earlier will prevent incorrect execution.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.hyperledger.besu:evm | 22.7.1 | GHSA-4456-w38r-m53x |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| hyperledger | besu | > 22.1.3, < 22.7.1 |
Weakness: CWE-681, CWE-196 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
References
- https://github.com/hyperledger/besu/security/advisories/GHSA-4456-w38r-m53x x_refsource_CONFIRM