5.3
MEDIUM
CVE-2023-3446
OpenSSL DH Parameter Slowness Denial-of-Service Vulnerability
Description

Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or parameters that have been supplied. Some of those checks use the supplied modulus value even if it has already been found to be too large. An application that calls DH_check() and supplies a key or parameters obtained from an untrusted source could be vulernable to a Denial of Service attack. The function DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.

INFO

Published Date :

July 19, 2023, 12:15 p.m.

Last Modified :

Oct. 14, 2024, 3:15 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2023-3446 has a 6 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-2023-3446 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 Openssl openssl
: Total Affected Vendor : 1 | Products : 1
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-2023-3446.

URL Resource
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1fa20cf2f506113c761777127a38bce5068740eb Mailing List Patch Vendor Advisory
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8780a896543a654e757db1b9396383f9d8095528 Mailing List Patch Vendor Advisory
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9a0a4d3c1e7138915563c0df4fe6a3f9377b839c Broken Link Vendor Advisory
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc9867c1e03c22ebf56943be205202e576aabf23 Mailing List Patch Vendor Advisory
https://www.openssl.org/news/secadv/20230719.txt Vendor 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).

Profile Photo
Srinu-rj/spring-food-app

None

Dockerfile Roff Java

Updated: 1 month, 1 week ago
0 stars 0 fork 0 watcher
Born at : Oct. 7, 2024, 8:52 a.m. This repo has been linked 127 different CVEs too.
Profile Photo
testing-felickz/docker-scout-demo

None

Dockerfile Go

Updated: 5 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : May 29, 2024, 6:54 p.m. This repo has been linked 78 different CVEs too.
Profile Photo
zgimszhd61/openai-sec-test-cve-quickstart

None

Updated: 5 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : May 29, 2024, 11:09 a.m. This repo has been linked 9 different CVEs too.
Profile Photo
seal-community/patches

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

Updated: 4 months, 3 weeks ago
182 stars 0 fork 0 watcher
Born at : July 30, 2023, 4:46 p.m. This repo has been linked 265 different CVEs too.
Profile Photo
chnzzh/OpenSSL-CVE-lib

None

Updated: 2 months, 2 weeks ago
5 stars 0 fork 0 watcher
Born at : Feb. 23, 2023, 5:42 a.m. This repo has been linked 455 different CVEs too.
Profile Photo
equinixmetal-buildkite/trivy-buildkite-plugin

None

delivery-engineering delivery-eng buildkite-plugin

Shell Makefile

Updated: 2 weeks, 5 days ago
9 stars 9 fork 9 watcher
Born at : June 23, 2022, 1:12 p.m. This repo has been linked 5 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-2023-3446 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-3446 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 [email protected]

    Oct. 14, 2024

    Action Type Old Value New Value
    Removed Reference OpenSSL Software Foundation http://www.openwall.com/lists/oss-security/2023/07/19/5
    Removed Reference OpenSSL Software Foundation http://www.openwall.com/lists/oss-security/2023/07/19/4
    Removed Reference OpenSSL Software Foundation http://www.openwall.com/lists/oss-security/2023/07/19/6
    Removed Reference OpenSSL Software Foundation http://www.openwall.com/lists/oss-security/2023/07/31/1
    Removed Reference OpenSSL Software Foundation https://security.netapp.com/advisory/ntap-20230803-0011/
    Removed Reference OpenSSL Software Foundation https://lists.debian.org/debian-lts-announce/2023/08/msg00019.html
    Removed Reference OpenSSL Software Foundation https://security.gentoo.org/glsa/202402-08
    Removed Reference OpenSSL Software Foundation http://www.openwall.com/lists/oss-security/2024/05/16/1
    Added CWE OpenSSL Software Foundation CWE-606
  • CVE Modified by [email protected]

    Jun. 10, 2024

    Action Type Old Value New Value
    Added Reference OpenSSL Software Foundation http://www.openwall.com/lists/oss-security/2024/05/16/1 [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]
  • Modified Analysis by [email protected]

    Oct. 03, 2023

    Action Type Old Value New Value
    Changed Reference Type http://www.openwall.com/lists/oss-security/2023/07/31/1 No Types Assigned http://www.openwall.com/lists/oss-security/2023/07/31/1 Mailing List, Third Party Advisory
    Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1fa20cf2f506113c761777127a38bce5068740eb Mailing List, Patch https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1fa20cf2f506113c761777127a38bce5068740eb Mailing List, Patch, Vendor Advisory
    Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8780a896543a654e757db1b9396383f9d8095528 Mailing List, Patch https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8780a896543a654e757db1b9396383f9d8095528 Mailing List, Patch, Vendor Advisory
    Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9a0a4d3c1e7138915563c0df4fe6a3f9377b839c Broken Link https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9a0a4d3c1e7138915563c0df4fe6a3f9377b839c Broken Link, Vendor Advisory
    Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc9867c1e03c22ebf56943be205202e576aabf23 Mailing List, Patch https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc9867c1e03c22ebf56943be205202e576aabf23 Mailing List, Patch, Vendor Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2023/08/msg00019.html No Types Assigned https://lists.debian.org/debian-lts-announce/2023/08/msg00019.html Mailing List, Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20230803-0011/ No Types Assigned https://security.netapp.com/advisory/ntap-20230803-0011/ Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:openssl:openssl:1.0.2:-:*:*:*:*:*:* *cpe:2.3:a:openssl:openssl:3.0.0:-:*:*:*:*:*:* *cpe:2.3:a:openssl:openssl:3.1.0:-:*:*:*:*:*:* *cpe:2.3:a:openssl:openssl:3.1.1:-:*:*:*:*:*:* OR *cpe:2.3:a:openssl:openssl:1.0.2:-:*:*:*:*:*:* *cpe:2.3:a:openssl:openssl:1.1.1:-:*:*:*:*:*:* *cpe:2.3:a:openssl:openssl:3.0.0:-:*:*:*:*:*:* *cpe:2.3:a:openssl:openssl:3.1.0:-:*:*:*:*:*:* *cpe:2.3:a:openssl:openssl:3.1.1:-:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Aug. 16, 2023

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2023/08/msg00019.html [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 03, 2023

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20230803-0011/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 31, 2023

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/07/31/1 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 28, 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:L
    Changed Reference Type http://www.openwall.com/lists/oss-security/2023/07/19/4 No Types Assigned http://www.openwall.com/lists/oss-security/2023/07/19/4 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2023/07/19/5 No Types Assigned http://www.openwall.com/lists/oss-security/2023/07/19/5 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2023/07/19/6 No Types Assigned http://www.openwall.com/lists/oss-security/2023/07/19/6 Mailing List, Third Party Advisory
    Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1fa20cf2f506113c761777127a38bce5068740eb No Types Assigned https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1fa20cf2f506113c761777127a38bce5068740eb Mailing List, Patch
    Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8780a896543a654e757db1b9396383f9d8095528 No Types Assigned https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8780a896543a654e757db1b9396383f9d8095528 Mailing List, Patch
    Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9a0a4d3c1e7138915563c0df4fe6a3f9377b839c No Types Assigned https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9a0a4d3c1e7138915563c0df4fe6a3f9377b839c Broken Link
    Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc9867c1e03c22ebf56943be205202e576aabf23 No Types Assigned https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc9867c1e03c22ebf56943be205202e576aabf23 Mailing List, Patch
    Changed Reference Type https://www.openssl.org/news/secadv/20230719.txt No Types Assigned https://www.openssl.org/news/secadv/20230719.txt Vendor Advisory
    Added CWE NIST CWE-1333
    Added CPE Configuration OR *cpe:2.3:a:openssl:openssl:1.0.2:-:*:*:*:*:*:* *cpe:2.3:a:openssl:openssl:3.0.0:-:*:*:*:*:*:* *cpe:2.3:a:openssl:openssl:3.1.0:-:*:*:*:*:*:* *cpe:2.3:a:openssl:openssl:3.1.1:-:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 19, 2023

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/07/19/6 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 19, 2023

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/07/19/5 [No Types Assigned]
    Added Reference http://www.openwall.com/lists/oss-security/2023/07/19/4 [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-2023-3446 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-2023-3446 weaknesses.

Exploit Prediction

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

0.14 }} 0.02%

score

0.50595

percentile

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