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CVE-2024-30172 — Vulnerability in org.bouncycastle:bctls-jdk14 —...

MEDIUM

Bouncy Castle crafted signature and public key can be used to trigger an infinite loop

Published May 14, 2024Updated September 10, 2026Source: osv

Summary

An issue was discovered in Bouncy Castle Java Cryptography APIs starting in 1.73 and before 1.78. An Ed25519 verification code infinite loop can occur via a crafted signature and public key.

Advisory Timeline

  • First published May 14, 2024 (881 days ago).
  • Last revised September 10, 2026 — 849 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Maven
Update org.bouncycastle:bctls-jdk14 to 1.78 or later
<!-- Update pom.xml dependency version to 1.78 for org.bouncycastle:bctls-jdk14 -->
NuGet
Update BouncyCastle.Cryptography to 2.3.1 or later
dotnet add package BouncyCastle.Cryptography --version 2.3.1
Maven
Update org.bouncycastle:bctls-jdk18on to 1.78 or later
<!-- Update pom.xml dependency version to 1.78 for org.bouncycastle:bctls-jdk18on -->
Maven
Update org.bouncycastle:bcprov-jdk18on to 1.78 or later
<!-- Update pom.xml dependency version to 1.78 for org.bouncycastle:bcprov-jdk18on -->
Maven
Update org.bouncycastle:bcprov-jdk15to18 to 1.78 or later
<!-- Update pom.xml dependency version to 1.78 for org.bouncycastle:bcprov-jdk15to18 -->
Maven
Update org.bouncycastle:bcprov-jdk14 to 1.78 or later
<!-- Update pom.xml dependency version to 1.78 for org.bouncycastle:bcprov-jdk14 -->
Maven
Update org.bouncycastle:bctls-jdk15to18 to 1.78 or later
<!-- Update pom.xml dependency version to 1.78 for org.bouncycastle:bctls-jdk15to18 -->

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (8)

Affects 2 ecosystems: maven (6), nuget (2).

PackageEcosystemAffectedFixed In
org.bouncycastle:bctls-jdk14
maven
1.73, 1.74, 1.75, 1.76 (+1 more)1.78
BouncyCastle
nuget
1.7.0, 1.8.1, 1.8.2, 1.8.3 (+6 more)Range-based data available
BouncyCastle.Cryptography
nuget
2.0.0, 2.1.0, 2.1.1, 2.2.0 (+2 more)2.3.1
org.bouncycastle:bctls-jdk18on
maven
1.73, 1.74, 1.75, 1.76 (+1 more)1.78
org.bouncycastle:bcprov-jdk18on
maven
1.73, 1.74, 1.75, 1.76 (+1 more)1.78
org.bouncycastle:bcprov-jdk15to18
maven
1.73, 1.74, 1.75, 1.76 (+1 more)1.78
org.bouncycastle:bcprov-jdk14
maven
1.73, 1.74, 1.75, 1.76 (+1 more)1.78
org.bouncycastle:bctls-jdk15to18
maven
1.73, 1.74, 1.75, 1.76 (+1 more)1.78

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.3 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

Frequently Asked Questions

What is CVE-2024-30172?
Bouncy Castle crafted signature and public key can be used to trigger an infinite loop This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 5.3/10).
How do I check if my project is affected by CVE-2024-30172?
CVE-2024-30172 affects org.bouncycastle:bctls-jdk14, BouncyCastle and BouncyCastle.Cryptography (and 5 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2024-30172 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
5.3

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-m44j-cfrm-g8qc

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