Infinite loop Affecting bouncycastle.cryptography package, versions [,2.3.1)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    Exploit Maturity
    Proof of concept
    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-DOTNET-BOUNCYCASTLECRYPTOGRAPHY-7831268
  • published 26 Aug 2024
  • disclosed 12 Apr 2024
  • credit jr981008

How to fix?

Upgrade BouncyCastle.Cryptography to version 2.3.1 or higher.

Overview

Affected versions of this package are vulnerable to Infinite loop in ED25519 verification in the ScalarUtil class. An attacker can send a malicious signature and public key to trigger denial of service.

CVSS Scores

version 3.1
Expand this section

Snyk

Recommended
7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
Expand this section

Red Hat

7.5 high