#VU67667 Unsigned to Signed Conversion Error in Besu


Published: 2022-09-27

Vulnerability identifier: #VU67667

Vulnerability risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-36025

CWE-ID: CWE-196

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Besu
Web applications / JS libraries

Vendor: hyperledger

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a gas allocation error in CALL operations. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Besu: 22.4.0 - 22.7.0 RC4


External links
http://github.com/hyperledger/besu/security/advisories/GHSA-4456-w38r-m53x


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability