CVE-2022-39242 : Vulnerability Insights and Analysis
Learn about CVE-2022-39242, an issue in Frontier that could inflate Ethereum chain gas prices. Explore the impact, technical details, and mitigation steps to address this vulnerability.
Frontier is an Ethereum compatibility layer for Substrate that was susceptible to an incorrect calculation issue prior to a specific commit. This vulnerability could potentially lead to inflated chain gas prices through block spamming attacks. Learn more about the impact, technical details, and mitigation steps below.
Understanding CVE-2022-39242
This section provides an overview of the vulnerability in Frontier that could result in inflated Ethereum chain gas prices.
What is CVE-2022-39242?
CVE-2022-39242 highlights an incorrect calculation issue in Frontier that could be exploited to perform block spamming attacks and inflate chain gas prices.
The Impact of CVE-2022-39242
While the vulnerability could lead to block spamming attacks, adversaries would still face significant costs. It does not allow for state alteration within the chain, and a patch has been released to address this issue.
Technical Details of CVE-2022-39242
Explore the specific technical aspects of the vulnerability to understand how it affects systems.
Vulnerability Description
Prior to a specific commit, Frontier miscalculated the worst-case weight, potentially enabling block spamming attacks.
Affected Systems and Versions
The vulnerability impacts the Frontier product by Parity Technologies prior to commit d3beddc6911a559a3ecc9b3f08e153dbe37a8658.
Exploitation Mechanism
Adversaries could construct blocks with large EVM gas refunds or unused gases with reverts to inflate chain gas prices.
Mitigation and Prevention
Discover the steps to mitigate the risk posed by CVE-2022-39242 and prevent similar vulnerabilities in the future.
Immediate Steps to Take
Users are advised to apply the patch released in commit d3beddc6911a559a3ecc9b3f08e153dbe37a8658 to address the vulnerability promptly.
Long-Term Security Practices
Adopting secure coding practices and conducting regular security audits can help prevent similar vulnerabilities in the future.
Patching and Updates
Stay informed about security updates from Parity Technologies for Frontier to ensure protection against known vulnerabilities.