Stack-based Buffer Overflow Affecting openvpn package, versions [,2.5.10) [2.6.0,2.6.10)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    Exploit Maturity
    Proof of concept
    EPSS
    0.04% (6th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-UNMANAGED-OPENVPN-7689066
  • published 16 Aug 2024
  • disclosed 8 Jul 2024
  • credit Vladimir Tokarev

How to fix?

Upgrade openvpn to version 2.5.10, 2.6.10 or higher.

Overview

Affected versions of this package are vulnerable to Stack-based Buffer Overflow through the interactive service. An attacker can execute arbitrary code with elevated privileges by sending data that triggers a stack overflow.

Note:

When chained with CVE-2024-27903, it could result in local privilege execution.

CVSS Scores

version 4.0
version 3.1
Expand this section

Snyk

Recommended
8.5 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Attack Requirements (AT)
    None
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Confidentiality (VC)
    High
  • Integrity (VI)
    High
  • Availability (VA)
    High
  • Confidentiality (SC)
    None
  • Integrity (SI)
    None
  • Availability (SA)
    None