CVE-2021-41272 is a high-severity vulnerability affecting Besu, an Ethereum client written in Java, specifically versions 21.10.0 and 21.10.1. It stems from a signed type coercion error in SHL, SHR, and SAR operations, causing smart contracts with specific shift values to fail execution and validation. This can lead to network forks, transaction non-inclusion, or validator nodes ceasing to accept blocks, depending on the network's composition of vulnerable and non-vulnerable clients. With a CVSS score of 7.5 (High), the vulnerability is network-exploitable with low attack complexity and results in high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion regarding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
21.10.0CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:besu:21.10.0:-:*:*:*:*:*:* | ||
21.10.0CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:besu:21.10.0:rc1:*:*:*:*:*:* | ||
21.10.0CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:besu:21.10.0:rc2:*:*:*:*:*:* | ||
21.10.0CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:besu:21.10.0:rc3:*:*:*:*:*:* | ||
21.10.0CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:besu:21.10.0:rc4:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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