6.5
MEDIUM
CVE-2017-7479
OpenVPN Assertion Denial of Service
Description

OpenVPN versions before 2.3.15 and before 2.4.2 are vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated attacker.

INFO

Published Date :

May 15, 2017, 6:29 p.m.

Last Modified :

Nov. 21, 2024, 3:31 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2017-7479 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 Openvpn openvpn

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).

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

The following list is the news that have been mention CVE-2017-7479 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-7479 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 http://www.debian.org/security/2017/dsa-3900
    Added Reference http://www.securityfocus.com/bid/98443
    Added Reference http://www.securitytracker.com/id/1038473
    Added Reference https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CWE Red Hat, Inc. CWE-617
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-20 CWE-617
  • CVE Modified by [email protected]

    Nov. 04, 2017

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2017/dsa-3900 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 08, 2017

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1038473 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 05, 2017

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/98443 [No Types Assigned]
  • Initial Analysis by [email protected]

    May. 25, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:S/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits No Types Assigned https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits Vendor Advisory
    Added CWE CWE-20
    Added CPE Configuration OR *cpe:2.3:a:openvpn:openvpn:2.3.14:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:openvpn:openvpn:2.4.0:*:*:*:*:*:*:* *cpe:2.3:a:openvpn:openvpn:2.4.0:alpha2:*:*:*:*:*:* *cpe:2.3:a:openvpn:openvpn:2.4.0:beta1:*:*:*:*:*:* *cpe:2.3:a:openvpn:openvpn:2.4.0:beta2:*:*:*:*:*:* *cpe:2.3:a:openvpn:openvpn:2.4.0:rc1:*:*:*:*:*:* *cpe:2.3:a:openvpn:openvpn:2.4.0:rc2:*:*:*:*:*:* *cpe:2.3:a:openvpn:openvpn:2.4.1:*:*:*:*:*:*:*
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-2017-7479 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-2017-7479 weaknesses.

Exploit Prediction

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

0.38 }} 0.00%

score

0.68781

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability