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CVE-2023-33202

Affected software2 products, listed below
Severity5.5 Medium CVSS 3.1
Fixed in1.73
WeaknessUncontrolled resource consumption (CWE-400)
Published23 Nov 2023
Updated17 Jun 2026

Description

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.)

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 2 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 1.00% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: bcgit/bc-java 0c57689.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update January 2025 ↗ CPU 2025-Q1 Oracle Analytics / Analytics Server (Bouncy Castle Java Library) (7.0.0.0.0)
Oracle Critical Patch Update July 2024 ↗ CPU 2024-Q3 Oracle Analytics / Analytics Server (Bouncy Castle Java Library) (Prior to 7.8.0)
Oracle Critical Patch Update April 2024 ↗ CPU 2024-Q2 Oracle Fusion Middleware / Centralized Thirdparty Jars (Bouncy Castle Java Library) (12.2.1.4.0, 14.1.1.0.0)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Analytics Analytics Server (Bouncy Castle Java Library) Prior to 7.8.0 7.0.0.0.0
Oracle Fusion Middleware Centralized Thirdparty Jars (Bouncy Castle Java Library) 12.2.1.4.0, 14.1.1.0.0 12.2.1.4.0 · 14.1.1.0.0

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.bouncycastle:bcprov-ext-jdk16 0 1.73 unbounded
org.bouncycastle:bcprov-jdk14 0 1.73 unbounded
org.bouncycastle:bcprov-jdk15 0 1.73 unbounded
org.bouncycastle:bcprov-jdk15to18 0 1.73 unbounded
org.bouncycastle:bcprov-jdk16 0 1.73 unbounded
org.bouncycastle:bcprov-jdk15on 0 none unbounded
org.bouncycastle:bcpkix-jdk18on 0 1.73 unbounded
org.bouncycastle:bcprov-ext-jdk15on 0 1.73 unbounded
org.bouncycastle:bcprov-jdk18on 0 1.73 unbounded

Products and versions

11 products, 11 version entries
SourceVendorProductSchemeAffected versions
nvd bouncycastle bouncy castle for java generic < 1.73
nvd bouncycastle fips java api generic < 1.0.2.4
osv org.bouncycastle bcpkix-jdk18on generic < 1.73
osv org.bouncycastle bcprov-ext-jdk15on generic < 1.73
osv org.bouncycastle bcprov-ext-jdk16 generic < 1.73
osv org.bouncycastle bcprov-jdk14 generic < 1.73
osv org.bouncycastle bcprov-jdk15 generic < 1.73
osv org.bouncycastle bcprov-jdk15on generic any version
osv org.bouncycastle bcprov-jdk15to18 generic < 1.73
osv org.bouncycastle bcprov-jdk16 generic < 1.73
osv org.bouncycastle bcprov-jdk18on generic < 1.73

References

URLTags
https://github.com/bcgit/bc-java/commit/0c576892862ed41894f49a8f639112e8d66d229c WEB
https://bouncycastle.org WEB
https://github.com/bcgit/bc-java PACKAGE
https://github.com/bcgit/bc-java/wiki/CVE-2023-33202 WEB
https://security.netapp.com/advisory/ntap-20240125-0001 WEB
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

Timeline

Published2023-11-23By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.