CVE-2023-33202: Uncontrolled Resource Consumption

November 23, 2023 (updated January 25, 2024)

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/bcgit/bc-java/wiki/CVE-2023-33202
nvd.nist.gov/vuln/detail/CVE-2023-33202

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