CVE-2020-36843 Affecting libeddsa-java package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

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  • Snyk IDSNYK-DEBIAN13-LIBEDDSAJAVA-9480398
  • published19 Mar 2025
  • disclosed13 Mar 2025

Introduced: 13 Mar 2025

NewCVE-2020-36843  (opens in a new tab)

How to fix?

There is no fixed version for Debian:13 libeddsa-java.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libeddsa-java package and not the libeddsa-java package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

The implementation of EdDSA in EdDSA-Java (aka ed25519-java) through 0.3.0 exhibits signature malleability and does not satisfy the SUF-CMA (Strong Existential Unforgeability under Chosen Message Attacks) property. This allows attackers to create new valid signatures different from previous signatures for a known message.