CVE-2023-46849
OpenVPN Divide by Zero Denial of Service
Description
Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.
INFO
Published Date :
Nov. 11, 2023, 1:15 a.m.
Last Modified :
Nov. 21, 2024, 8:29 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2023-46849 has a 1 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-2023-46849
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.
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-2023-46849.
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).
A list of dorks for the Netlas.io search engine, with which you can find millions of objects in the boundless IoE. Contains queries to search for IoT elements, protocols, communication tools, remote access, and more. Over time, the list will grow.
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-46849 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-46849 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://community.openvpn.net/openvpn/wiki/CVE-2023-46849 Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/ Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/ Added Reference https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/ Added Reference https://www.debian.org/security/2023/dsa-5555 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 29, 2023
Action Type Old Value New Value Added Reference OpenVPN Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/ [No types assigned] -
Initial Analysis by [email protected]
Nov. 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:H Changed Reference Type https://community.openvpn.net/openvpn/wiki/CVE-2023-46849 No Types Assigned https://community.openvpn.net/openvpn/wiki/CVE-2023-46849 Vendor Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/ Mailing List Changed Reference Type https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/ No Types Assigned https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/ Vendor Advisory Changed Reference Type https://www.debian.org/security/2023/dsa-5555 No Types Assigned https://www.debian.org/security/2023/dsa-5555 Third Party Advisory Added CWE NIST CWE-369 Added CPE Configuration OR *cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:* versions from (including) 2.6.0 up to (including) 2.6.6 *cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:* versions from (including) 2.11.0 up to (including) 2.11.3 *cpe:2.3:a:openvpn:openvpn_access_server:2.12.0:*:*:*:*:*:*:* *cpe:2.3:a:openvpn:openvpn_access_server:2.12.1:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 23, 2023
Action Type Old Value New Value Added Reference OpenVPN Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/ [No types assigned] -
CVE Modified by [email protected]
Nov. 16, 2023
Action Type Old Value New Value Added Reference OpenVPN Inc. https://www.debian.org/security/2023/dsa-5555 [No types assigned] -
CVE Received by [email protected]
Nov. 11, 2023
Action Type Old Value New Value Added Description Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service. Added Reference OpenVPN Inc. https://community.openvpn.net/openvpn/wiki/CVE-2023-46849 [No types assigned] Added Reference OpenVPN Inc. https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/ [No types assigned] Added CWE OpenVPN Inc. CWE-369
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-46849 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-2023-46849
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.02%
score
0.45957
percentile