Improper Verification of Cryptographic Signature Affecting net.i2p.crypto:eddsa package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-NETI2PCRYPTO-9402849
- published13 Mar 2025
- disclosed13 Mar 2025
- creditUnknown
Introduced: 13 Mar 2025
CVE-2020-36843 (opens in a new tab)How to fix?
There is no fixed version for net.i2p.crypto:eddsa.
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.