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    CVE-2023-33202

    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. (For users of the FIPS Java API: BC-FJA 1.0.2.3 and earlier are affected; BC-FJA 1.0.2.4 is fixed.)

    Published:Nov 23, 2023
    Last Modified:Aug 18, 2025
    EPS:Nov 23, 2023
    EPSS Score:0.00059
    CVSS Score:5.5

    Affected Products

    Vendor
    Bouncycastle
    Product
    Bouncy Castle For Java
    Vendor
    Bouncycastle
    Product
    Fips Java Api
    Vendor
    Redhat
    Product
    Amq Streams

    Exploits

    https://github.com/bcgit/bc-java/wiki/CVE-2023-33202https://github.com/bcgit/bc-java/wiki/CVE-2023-33202

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High