CVE-2024-29857 — Vulnerability in org.bouncycastle:bc-fips — CVE...

MEDIUM

Bouncy Castle certificate parsing issues cause high CPU usage during parameter evaluation.

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

Summary

An issue was discovered in ECCurve.java and ECCurve.cs in Bouncy Castle Java (BC Java) before 1.78, BC Java LTS before 2.73.6, BC-FJA before 1.0.2.5, and BC C# .Net before 2.3.1. Importing an EC certificate with crafted F2m parameters can lead to excessive CPU consumption during the evaluation of the curve parameters.

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:bc-fips to 1.0.2.5 or later

<!-- Update pom.xml dependency version to 1.0.2.5 for org.bouncycastle:bc-fips -->

Maven

Update org.bouncycastle:bcprov-jdk18on to 1.78 or later

<!-- Update pom.xml dependency version to 1.78 for org.bouncycastle:bcprov-jdk18on -->

NuGet

Update BouncyCastle.Cryptography to 2.3.1 or later

dotnet add package BouncyCastle.Cryptography --version 2.3.1

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:bcprov-jdk15on to 1.78 or later

<!-- Update pom.xml dependency version to 1.78 for org.bouncycastle:bcprov-jdk15on -->

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:bctls-jdk18on to 1.78 or later

<!-- Update pom.xml dependency version to 1.78 for org.bouncycastle:bctls-jdk18on -->

Maven

Update org.bouncycastle:bctls-jdk14 to 1.78 or later

<!-- Update pom.xml dependency version to 1.78 for org.bouncycastle:bctls-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 (10)

Affects 2 ecosystems: maven (8), nuget (2).

Package	Ecosystem	Affected	Fixed In
org.bouncycastle:bc-fips	maven	1.0.0, 1.0.1, 1.0.2, 1.0.2.1 (+2 more)	1.0.2.5
BouncyCastle	nuget	1.7.0, 1.8.1, 1.8.2, 1.8.3 (+6 more)	Range-based data available
org.bouncycastle:bcprov-jdk18on	maven	1.71, 1.71.1, 1.72, 1.73 (+4 more)	1.78
BouncyCastle.Cryptography	nuget	2.0.0, 2.1.0, 2.1.1, 2.2.0 (+2 more)	2.3.1
org.bouncycastle:bcprov-jdk14	maven	1.38, 1.43, 1.44, 1.45 (+30 more)	1.78
org.bouncycastle:bcprov-jdk15on	maven	1.46, 1.47, 1.48, 1.49 (+22 more)	1.78
org.bouncycastle:bcprov-jdk15to18	maven	1.63, 1.64, 1.65, 1.66 (+11 more)	1.78
org.bouncycastle:bctls-jdk18on	maven	1.71, 1.71.1, 1.72, 1.73 (+4 more)	1.78
org.bouncycastle:bctls-jdk14	maven	1.61, 1.62, 1.63, 1.64 (+12 more)	1.78
org.bouncycastle:bctls-jdk15to18	maven	1.63, 1.64, 1.65, 1.66 (+11 more)	1.78

Vulnerability Classification

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

CWE-125
Out-of-bounds ReadMITRE
CWE-400
Uncontrolled Resource ConsumptionMITRE

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-2024-29857?: Bouncy Castle certificate parsing issues cause high CPU usage during parameter evaluation. 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-2024-29857?: CVE-2024-29857 affects org.bouncycastle:bc-fips, BouncyCastle and org.bouncycastle:bcprov-jdk18on (and 7 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2024-29857 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-8xfc-gm6g-vgpv

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