CVE-2018-20421
HIGH
7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
MEDIUM
5,0
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: none
Integrity: none
Availability: partial
Description
AI Translation Available
Go Ethereum (aka geth) 1.8.19 allows attackers to cause a denial of service (memory consumption) by rewriting the length of a dynamic array in memory, and then writing data to a single memory location with a large index number, as demonstrated by use of 'assembly { mstore }' followed by a 'c[0xC800000] = 0xFF' assignment.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0033
Percentile
0,6th
Updated
EPSS Score Trend (Last 90 Days)
770
Allocation of Resources Without Limits or Throttling
IncompleteCommon Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Cpu)
Dos: Resource Consumption (Memory)
Dos: Resource Consumption (Other)
Applicable Platforms
All platforms may be affected
Application
Go Ethereum by Ethereum
CPE Identifier
View Detailed Analysis
cpe:2.3:a:ethereum:go_ethereum:1.8.19:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/ethereum/go-ethereum/issues/18289
https://github.com/ethereum/go-ethereum/issues/18289