Improper Verification of Cryptographic Signature Affecting net.i2p:i2p package, versions [,0.9.39)
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Test your applications- Snyk IDSNYK-JAVA-NETI2P-9402850
- published13 Mar 2025
- disclosed13 Mar 2025
- creditUnknown
Introduced: 13 Mar 2025
NewCVE-2020-36843 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade net.i2p:i2p to version 0.9.39 or higher.
Overview
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the x_engineVerify() method in EdDSAEngine.java, which does not comply with RFC 8032 specifications for signature maleability. An attacker can create new valid signatures different from previous signatures for a known message.