CVE-2020-26240
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth before version 1.9.24 could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January, 2021). This happened on the ETC chain on 2020-11-06. This issue is relevant only for miners, non-mining nodes are unaffected. This issue is fixed as of 1.9.24
Overview
- CVE ID
- CVE-2020-26240
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-11-25T02:15:10
- Last Modified Date
- 2020-12-03T15:16:13
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:* | 1 | OR | 1.9.24 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/ethereum/go-ethereum/security/advisories/GHSA-v592-xf75-856p | Third Party Advisory |
| https://github.com/ethereum/go-ethereum/pull/21793 | Patch Third Party Advisory |
| https://github.com/ethereum/go-ethereum/commit/d990df909d7839640143344e79356754384dcdd0 | Patch Third Party Advisory |
| https://blog.ethereum.org/2020/11/12/geth_security_release/ | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-26240 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26240 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:31:30 | Added to TrackCVE | |||
| 2022-12-05 17:18:59 | 2020-11-25T02:15Z | 2020-11-25T02:15:10 | CVE Published Date | updated |
| 2022-12-05 17:18:59 | 2020-12-03T15:16:13 | CVE Modified Date | updated | |
| 2022-12-05 17:18:59 | Analyzed | Vulnerability Status | updated |