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 :
Nov. 21, 2024, 8:17 a.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.
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.
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 Roff Java
None
Dockerfile Go
None
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
None
delivery-engineering delivery-eng buildkite-plugin
Shell Makefile
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.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2023/07/19/4 Added Reference http://www.openwall.com/lists/oss-security/2023/07/19/5 Added Reference http://www.openwall.com/lists/oss-security/2023/07/19/6 Added Reference http://www.openwall.com/lists/oss-security/2023/07/31/1 Added Reference http://www.openwall.com/lists/oss-security/2024/05/16/1 Added Reference https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1fa20cf2f506113c761777127a38bce5068740eb Added Reference https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8780a896543a654e757db1b9396383f9d8095528 Added Reference https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9a0a4d3c1e7138915563c0df4fe6a3f9377b839c Added Reference https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc9867c1e03c22ebf56943be205202e576aabf23 Added Reference https://lists.debian.org/debian-lts-announce/2023/08/msg00019.html Added Reference https://security.gentoo.org/glsa/202402-08 Added Reference https://security.netapp.com/advisory/ntap-20230803-0011/ Added Reference https://www.openssl.org/news/secadv/20230719.txt -
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]
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.
0.20 }} 0.06%
score
0.57865
percentile