CVE-2023-0464
OpenSSL Policy Constraint DoS Vulnerability
Description
A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.
INFO
Published Date :
March 22, 2023, 5:15 p.m.
Last Modified :
May 5, 2025, 4:15 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
CVE-2023-0464 vulnerability.
Public PoC/Exploit Available at Github
CVE-2023-0464 has a 13 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2023-0464.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-0464 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-2023-0464
weaknesses.
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).
None
Dockerfile Python
Detect the vectors of risk within your code
cloud rust security
Rust Dockerfile
None
Python Dockerfile
None
Dockerfile CSS HTML
None
Dockerfile Roff Java
None
Shell
None
HTML
A centralized repository of standalone security patches for open source libraries.
appsec backport cve devsecops fix hotfix open-source patch protection remediation seal security update upgrade vulnerability
None
Perl DIGITAL Command Language C Shell Assembly M4 eC Python C++ sed
None
HTML
None
Microservice for uploading Readme, SBOM, License File, Swagger and other DevOps and Supply Chain Intelligence.
hacktoberfest
Python Dockerfile Smarty Shell
Jenkins pipeline shared library adding features for Maven, Gradle, Docker, SonarQube, Git and others
jenkins jenkins-pipeline maven git ces java sonarqube docker gradle
Groovy
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-0464 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-0464 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 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 05, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-295 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2017771e2db3e2b96f89bbe8766c3209f6a99545 Added Reference https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2dcd4f1e3115f38cefa43e3efbe9b801c27e642e Added Reference https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=879f7080d7e141f415c79eaa3a8ac4a3dad0348b Added Reference https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=959c59c7a0164117e7f8366466a32bb1f8d77ff1 Added Reference https://lists.debian.org/debian-lts-announce/2023/06/msg00011.html Added Reference https://security.gentoo.org/glsa/202402-08 Added Reference https://security.netapp.com/advisory/ntap-20230406-0006/ Added Reference https://security.netapp.com/advisory/ntap-20240621-0006/ Added Reference https://www.couchbase.com/alerts/ Added Reference https://www.debian.org/security/2023/dsa-5417 Added Reference https://www.openssl.org/news/secadv/20230322.txt -
CVE Modified by [email protected]
Jun. 21, 2024
Action Type Old Value New Value Added Reference OpenSSL Software Foundation https://security.netapp.com/advisory/ntap-20240621-0006/ [No types assigned] -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 04, 2024
Action Type Old Value New Value Added Reference OpenSSL Software Foundation https://security.gentoo.org/glsa/202402-08 [No types assigned] -
CVE Modified by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Added Reference OpenSSL Software Foundation https://www.couchbase.com/alerts/ [No types assigned] -
CVE Modified by [email protected]
Jun. 08, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/06/msg00011.html [No Types Assigned] -
CVE Modified by [email protected]
Jun. 01, 2023
Action Type Old Value New Value Changed Description A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function. A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function. Added Reference https://www.debian.org/security/2023/dsa-5417 [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 29, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2017771e2db3e2b96f89bbe8766c3209f6a99545 No Types Assigned https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2017771e2db3e2b96f89bbe8766c3209f6a99545 Mailing List, Patch Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2dcd4f1e3115f38cefa43e3efbe9b801c27e642e No Types Assigned https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2dcd4f1e3115f38cefa43e3efbe9b801c27e642e Broken Link Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=879f7080d7e141f415c79eaa3a8ac4a3dad0348b No Types Assigned https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=879f7080d7e141f415c79eaa3a8ac4a3dad0348b Mailing List, Patch Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=959c59c7a0164117e7f8366466a32bb1f8d77ff1 No Types Assigned https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=959c59c7a0164117e7f8366466a32bb1f8d77ff1 Mailing List, Patch Changed Reference Type https://www.openssl.org/news/secadv/20230322.txt No Types Assigned https://www.openssl.org/news/secadv/20230322.txt Vendor Advisory Added CWE NIST CWE-295 Added CPE Configuration OR *cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions from (including) 1.0.2 up to (excluding) 1.0.2zh *cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions from (including) 1.1.1 up to (excluding) 1.1.1u *cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 3.0.9 *cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions from (including) 3.1.0 up to (excluding) 3.1.1
Vulnerability Scoring Details
Base CVSS Score: 7.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.37 }} 0.04%
score
0.79381
percentile