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.)

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bouncycastle.org	Product
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902023%E2%80%9033202
https://github.com/bcgit/bc-java/wiki/CVE-2023-33202	Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20240125-0001/	Third Party Advisory
https://bouncycastle.org	Product
https://github.com/bcgit/bc-java/wiki/CVE-2023-33202	Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20240125-0001/	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:bouncycastle:bouncy_castle_for_java::::::::
	cpe:2.3:a:bouncycastle:fips_java_api::::::::

History

18 Aug 2025, 17:15

Type	Values Removed	Values Added
References		() https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902023%E2%80%9033202 -

Information

Published : 2023-11-23 16:15

Updated : 2025-08-18 17:15

NVD link : CVE-2023-33202

Mitre link : CVE-2023-33202

CVE.ORG link : CVE-2023-33202

JSON object : View

Products Affected

bouncycastle

fips_java_api
bouncy_castle_for_java

CWE

CWE-400

Uncontrolled Resource Consumption

{"id": "CVE-2023-33202", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2023-11-23T16:15:07.273", "references": [{"url": "https://bouncycastle.org", "tags": ["Product"], "source": "cve@mitre.org"}, {"url": "https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902023%E2%80%9033202", "source": "cve@mitre.org"}, {"url": "https://github.com/bcgit/bc-java/wiki/CVE-2023-33202", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://security.netapp.com/advisory/ntap-20240125-0001/", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://bouncycastle.org", "tags": ["Product"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/bcgit/bc-java/wiki/CVE-2023-33202", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.netapp.com/advisory/ntap-20240125-0001/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-400"}]}], "descriptions": [{"lang": "en", "value": "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.)"}, {"lang": "es", "value": "Bouncy Castle para Java anterior a 1.73 contiene un posible problema de denegaci\u00f3n de servicio (DoS) dentro de la clase Bouncy Castle org.bouncycastle.openssl.PEMParser. Esta clase analiza secuencias codificadas OpenSSL PEM que contienen certificados X.509, claves codificadas PKCS8 y objetos PKCS7. El an\u00e1lisis de un archivo que ha creado datos ASN.1 a trav\u00e9s de PEMParser provoca un OutOfMemoryError, que puede permitir un ataque de denegaci\u00f3n de servicio."}], "lastModified": "2025-08-18T17:15:27.680", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:bouncycastle:bouncy_castle_for_java:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A450303D-AF6E-4A81-BE1C-F744B728AC27", "versionEndExcluding": "1.73"}, {"criteria": "cpe:2.3:a:bouncycastle:fips_java_api:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "326EBBC5-8448-412E-9B9E-6D93A0BD4790", "versionEndExcluding": "1.0.2.4"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}