Home/CVE/Bouncy Castle for Java before 1.73 contains a potential Denial of Service (DoS) issue within the Bouncy Castle org.bounc
CVE

CVE-2023-33202

Bouncy Castle for Java before 1.73 contains a potential Denial of Service (DoS) issue within the Bouncy Castle org.bounc

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.)

MEDIUM · CVSS 5.5 EPSS 0.00144
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

2
bouncycastle bouncy castle for java< 1.73
bouncycastle fips java api< 1.0.2.4
▤

Affected Packages

9
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.bouncycastle:bcpkix-jdk18on MODERATE fixed in 1.73
Maven org.bouncycastle:bcprov-ext-jdk15on MODERATE fixed in 1.73
Maven org.bouncycastle:bcprov-ext-jdk16 MODERATE fixed in 1.73
Maven org.bouncycastle:bcprov-jdk14 MODERATE fixed in 1.73
Maven org.bouncycastle:bcprov-jdk15 MODERATE fixed in 1.73
Maven org.bouncycastle:bcprov-jdk15on MODERATE
Maven org.bouncycastle:bcprov-jdk15to18 MODERATE fixed in 1.73
Maven org.bouncycastle:bcprov-jdk16 MODERATE fixed in 1.73
Maven org.bouncycastle:bcprov-jdk18on MODERATE fixed in 1.73
⚠

Public Exploits & PoCs

1
pocgithub.com · CVE-2023-33202github.com
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD23 Nov 2023 · 04:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
rhsaRHSA-2024:3527Moderate
oracle-cpuoracle-cpu-Oracle-Analytics-Desktop-2025--CVE-2023-33202
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bouncycastle.orgProduct
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902023%E2%80%9033202
https://security.netapp.com/advisory/ntap-20240125-0001/Third Party Advisory
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