CVE-2023-33202
MEDIUM5.5EPSS 0.14%Bouncy Castle Denial of Service (DoS)
Published: 11/23/2023Modified: 4/28/2026
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.)
Affected packages (10)
- Debian/bouncycastlefrom 0
- Maven/org.bouncycastle:bcpkix-jdk18onfrom 0, < 1.73
- Maven/org.bouncycastle:bcprov-ext-jdk15onfrom 0, < 1.73
- Maven/org.bouncycastle:bcprov-ext-jdk16from 0, < 1.73
- Maven/org.bouncycastle:bcprov-jdk14from 0, < 1.73
- Maven/org.bouncycastle:bcprov-jdk15from 0, < 1.73
- Maven/org.bouncycastle:bcprov-jdk15onfrom 0
- Maven/org.bouncycastle:bcprov-jdk15to18from 0, < 1.73
- Maven/org.bouncycastle:bcprov-jdk16from 0, < 1.73
- Maven/org.bouncycastle:bcprov-jdk18onfrom 0, < 1.73
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-33202
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2023-33202
- PATCHhttps://github.com/bcgit/bc-java
- WEBhttps://bouncycastle.org
- WEBhttps://github.com/bcgit/bc-java/commit/0c576892862ed41894f49a8f639112e8d66d229c
- WEBhttps://github.com/bcgit/bc-java/wiki/CVE-2023-33202
- WEBhttps://security.netapp.com/advisory/ntap-20240125-0001