CVE-2024-34447: Bouncy Castle Java Cryptography API vulnerable to DNS poisoning

May 3, 2024

An issue was discovered in Bouncy Castle Java Cryptography APIs before BC 1.78. When endpoint identification is enabled in the BCJSSE and an SSL socket is created without an explicit hostname (as happens with HttpsURLConnection), hostname verification could be performed against a DNS-resolved IP address in some situations, opening up a possibility of DNS poisoning.

References

github.com/advisories/GHSA-4h8f-2wvx-gg5w
github.com/bcgit/bc-java
nvd.nist.gov/vuln/detail/CVE-2024-34447
www.bouncycastle.org/latest_releases.html

Detect and mitigate CVE-2024-34447 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →