CVE-2020-26264

CVSS V2 Medium 4 CVSS V3 Medium 6.5
Description
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.25 a denial-of-service vulnerability can make a LES server crash via malicious GetProofsV2 request from a connected LES client. This vulnerability only concerns users explicitly enabling les server; disabling les prevents the exploit. The vulnerability was patched in version 1.9.25.
Overview
  • CVE ID
  • CVE-2020-26264
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-12-11T17:15:12
  • Last Modified Date
  • 2020-12-14T18:06:07
Weakness Enumerations
CWE URL
CWE-400 http://cwe.mitre.org/data/definitions/400.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:* 1 OR 1.9.25
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/ethereum/go-ethereum/pull/21896 Patch Third Party Advisory
https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29q Third Party Advisory
https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25 Third Party Advisory
https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46 Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-26264
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26264
History
Created Old Value New Value Data Type Notes
2022-05-10 07:30:32 Added to TrackCVE
2022-12-05 18:04:01 2020-12-11T17:15Z 2020-12-11T17:15:12 CVE Published Date updated
2022-12-05 18:04:01 2020-12-14T18:06:07 CVE Modified Date updated
2022-12-05 18:04:01 Analyzed Vulnerability Status updated