Hyperledger Besu up to 22.7.0 CALL unsigned conversion

Summaryinfo

A vulnerability described as problematic has been identified in Hyperledger Besu up to 22.7.0. This issue affects the function CALL. The manipulation results in unsigned conversion. This vulnerability is identified as CVE-2022-36025. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Hyperledger Besu up to 22.7.0. Affected is the function CALL. The manipulation with an unknown input leads to a unsigned conversion vulnerability. CWE is classifying the issue as CWE-196. The product uses an unsigned primitive and performs a cast to a signed primitive, which can produce an unexpected value if the value of the unsigned primitive can not be represented using a signed primitive. This is going to have an impact on integrity, and availability. CVE summarizes:

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.

The weakness was released 09/24/2022 as GHSA-4456-w38r-m53x. The advisory is available at github.com. This vulnerability is traded as CVE-2022-36025 since 07/15/2022. Technical details are known, but there is no available exploit.

Upgrading to version 22.7.1 eliminates this vulnerability.

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Productinfo

Vendor

• Hyperledger

Name

• Besu

Version

• 22.0
• 22.1
• 22.2
• 22.3
• 22.4
• 22.5
• 22.6
• 22.7.0

Website

• Product: https://github.com/hyperledger/besu/

CPE 2.3info

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CPE 2.2info

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