CVE-2020-26242 : Vulnerability Insights and Analysis
Learn about CVE-2020-26242, a Denial-of-service vulnerability in Go Ethereum (Geth) before version 1.9.18. Discover the impact, affected systems, exploitation details, and mitigation steps.
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.18, a Denial-of-service vulnerability exists during block processing. This CVE has a CVSS base score of 6.5 (Medium severity) with a HIGH impact on availability.
Understanding CVE-2020-26242
What is CVE-2020-26242?
CVE-2020-26242 is a Denial-of-service vulnerability in the Go Ethereum (Geth) software, affecting versions prior to 1.9.18.
The Impact of CVE-2020-26242
The vulnerability can lead to a crash during block processing, potentially disrupting the availability of the Ethereum network.
Technical Details of CVE-2020-26242
Vulnerability Description
The vulnerability in Geth before version 1.9.18 allows for a Denial-of-service attack, impacting the stability of the Ethereum protocol implementation.
Affected Systems and Versions
- Product: go-ethereum
- Vendor: ethereum
- Versions Affected: < 1.9.18
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Availability Impact: High
Mitigation and Prevention
Immediate Steps to Take
- Update Geth to version 1.9.18 or newer to mitigate the vulnerability.
- Monitor official Ethereum channels for security advisories and updates.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Implement network security measures to prevent and detect potential attacks.
Patching and Updates
- Apply patches and updates provided by the Ethereum development team to address security issues.