5.5
MEDIUM
CVE-2023-33202
Bouncy Castle Java PEMParser Denial of Service Vulnerability
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.)

INFO

Published Date :

Nov. 23, 2023, 4:15 p.m.

Last Modified :

Nov. 21, 2024, 8:05 a.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2023-33202 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2023-33202 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Bouncycastle fips_java_api
2 Bouncycastle bouncy_castle_for_java
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-33202.

URL Resource
https://bouncycastle.org Product
https://github.com/bcgit/bc-java/wiki/CVE-2023-33202 Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20240125-0001/ Third Party Advisory
https://bouncycastle.org Product
https://github.com/bcgit/bc-java/wiki/CVE-2023-33202 Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20240125-0001/ Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

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Dockerfile Java

Updated: 2 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Sept. 25, 2024, 4:57 a.m. This repo has been linked 7 different CVEs too.

None

Updated: 2 weeks, 1 day ago
6 stars 0 fork 0 watcher
Born at : Feb. 23, 2023, 5:42 a.m. This repo has been linked 462 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-33202 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-33202 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://bouncycastle.org
    Added Reference https://github.com/bcgit/bc-java/wiki/CVE-2023-33202
    Added Reference https://security.netapp.com/advisory/ntap-20240125-0001/
  • Modified Analysis by [email protected]

    Sep. 09, 2024

    Action Type Old Value New Value
    Changed Reference Type https://security.netapp.com/advisory/ntap-20240125-0001/ No Types Assigned https://security.netapp.com/advisory/ntap-20240125-0001/ Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:bouncycastle:bouncy_castle_for_java:*:*:*:*:*:*:*:* versions up to (excluding) 1.73 OR *cpe:2.3:a:bouncycastle:bouncy_castle_for_java:*:*:*:*:*:*:*:* versions up to (excluding) 1.73 *cpe:2.3:a:bouncycastle:fips_java_api:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.2.4
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Jan. 25, 2024

    Action Type Old Value New Value
    Added Reference MITRE https://security.netapp.com/advisory/ntap-20240125-0001/ [No types assigned]
  • CVE Modified by [email protected]

    Dec. 05, 2023

    Action Type Old Value New Value
    Changed 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. 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.)
  • Initial Analysis by [email protected]

    Nov. 30, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://bouncycastle.org No Types Assigned https://bouncycastle.org Product
    Changed Reference Type https://github.com/bcgit/bc-java/wiki/CVE-2023-33202 No Types Assigned https://github.com/bcgit/bc-java/wiki/CVE-2023-33202 Exploit, Third Party Advisory
    Added CWE NIST CWE-400
    Added CPE Configuration OR *cpe:2.3:a:bouncycastle:bouncy_castle_for_java:*:*:*:*:*:*:*:* versions up to (excluding) 1.73
  • CVE Received by [email protected]

    Nov. 23, 2023

    Action Type Old Value New Value
    Added 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.
    Added Reference MITRE https://bouncycastle.org [No types assigned]
    Added Reference MITRE https://github.com/bcgit/bc-java/wiki/CVE-2023-33202 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-33202 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-33202 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} -0.00%

score

0.12449

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability