CVE-2020-26264 – github.com/ethereum/go-ethereum

Package

Manager: go
Name: github.com/ethereum/go-ethereum
Vulnerable Version: >=0 <1.9.25

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00519 pctl0.65836

Details

Denial of service in github.com/ethereum/go-ethereum ### Impact A DoS vulnerability can make a LES server crash via malicious `GetProofsV2` request from a connected LES client. ### Patches The vulnerability was patched in https://github.com/ethereum/go-ethereum/pull/21896. ### Workarounds This vulnerability only concerns users explicitly enabling `les` server; disabling `les` prevents the exploit. It can also be patched by manually applying the patch in https://github.com/ethereum/go-ethereum/pull/21896. ### For more information If you have any questions or comments about this advisory: * Open an issue in [go-ethereum](https://github.com/ethereum/go-ethereum) * Email us at [security@ethereum.org](mailto:security@ethereum.org)

Metadata

Created: 2021-06-29T21:14:07Z
Modified: 2023-02-09T19:39:22Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/06/GHSA-r33q-22hv-j29q/GHSA-r33q-22hv-j29q.json
CWE IDs: ["CWE-400"]
Alternative ID: GHSA-r33q-22hv-j29q
Finding: F002
Auto approve: 1