🛡️ CVE-2023-33202
🟡 CVSS 5.5 — Medium ⚠️ Exploit Public CWE-400 NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.)

Details

Severity MEDIUM
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE CWE-400
Public Exploit ⚠️ Yes
Source NVD
Published 2023-11-23
Updated 2026-06-08
Modified 2025-08-18
Fix URL N/A

Affected Packages

Software From version Fixed in
bouncy-castle-for-java 1.73
fips-java-api 1.0.2.4
org.bouncycastle:bcpkix-jdk18on 1.73
org.bouncycastle:bcprov-ext-jdk15on 1.73
org.bouncycastle:bcprov-ext-jdk16 1.73
org.bouncycastle:bcprov-jdk14 1.73
org.bouncycastle:bcprov-jdk15 1.73
org.bouncycastle:bcprov-jdk15on
org.bouncycastle:bcprov-jdk15to18 1.73
org.bouncycastle:bcprov-jdk16 1.73
org.bouncycastle:bcprov-jdk18on 1.73

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