# CVE-2023-33202: bouncycastle: Bouncy Castle for Java before 1.73 contains a potential Denial of Service (DoS) issue within the Bouncy Castle org.bo...

CVE-2023-33202 is fixed in 7 products on 1 platform, first by DEBIAN-CVE-2023-33202, released November 23, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-33202
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0100
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 23, 2023

## 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.)

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bouncycastle Debian 13.5 (trixie) | 1.77-1 | [DEBIAN-CVE-2023-33202](https://patchblox.com/security/data/fix/linux/debian-cve-2023-33202.md) | Nov 23, 2023 |
| Linux | bouncycastle Debian 14 | 1.77-1 | [DEBIAN-CVE-2023-33202](https://patchblox.com/security/data/fix/linux/debian-cve-2023-33202.md) | Nov 23, 2023 |
| Linux | bouncycastle amzn 2023 | 1.70-4.amzn2023.0.4 | [ALAS2023-2024-479](https://patchblox.com/security/data/fix/linux/alas2023-2024-479.md) | Jan 3, 2024 |
| Linux | bouncycastle-javadoc amzn 2023 | 1.70-4.amzn2023.0.4 | [ALAS2023-2024-479](https://patchblox.com/security/data/fix/linux/alas2023-2024-479.md) | Jan 3, 2024 |
| Linux | bouncycastle-mail amzn 2023 | 1.70-4.amzn2023.0.4 | [ALAS2023-2024-479](https://patchblox.com/security/data/fix/linux/alas2023-2024-479.md) | Jan 3, 2024 |
| Linux | bouncycastle-pg amzn 2023 | 1.70-4.amzn2023.0.4 | [ALAS2023-2024-479](https://patchblox.com/security/data/fix/linux/alas2023-2024-479.md) | Jan 3, 2024 |
| Linux | bouncycastle-pkix amzn 2023 | 1.70-4.amzn2023.0.4 | [ALAS2023-2024-479](https://patchblox.com/security/data/fix/linux/alas2023-2024-479.md) | Jan 3, 2024 |
| Linux | bouncycastle-tls amzn 2023 | 1.70-4.amzn2023.0.4 | [ALAS2023-2024-479](https://patchblox.com/security/data/fix/linux/alas2023-2024-479.md) | Jan 3, 2024 |
| Linux | bouncycastle-util amzn 2023 | 1.70-4.amzn2023.0.4 | [ALAS2023-2024-479](https://patchblox.com/security/data/fix/linux/alas2023-2024-479.md) | Jan 3, 2024 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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