CVE-2023-33202: Bouncy Castle Denial of Service (DoS)

November 23, 2023 (updated November 24, 2023)

Bouncy Castle for Java before 1.73 contains a potential Denial of Service (DoS) issue within the Bouncy Castle org.bouncycastle.openssl.PEMParser class. This class parses OpenSSL PEM encoded streams containing X.509 certificates, PKCS8 encoded keys, and PKCS7 objects. Parsing a file that has crafted ASN.1 data through the PEMParser causes an OutOfMemoryError, which can enable a denial of service attack.

References

bouncycastle.org/
github.com/advisories/GHSA-wjxj-5m7g-mg7q
github.com/bcgit/bc-java/wiki/CVE-2023-33202
nvd.nist.gov/vuln/detail/CVE-2023-33202

Code Behaviors & Features

Detect and mitigate CVE-2023-33202 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 →