Use After Free Vulnerability in OpenVPN by OpenVPN Technologies Inc.
CVE-2023-46850

9.8CRITICAL

Key Information:

Vendor
OpenVPN
Status
OpenVPN 2 (Community)
Access Server
Vendor
CVE Published:
11 November 2023

Summary

A vulnerability in OpenVPN, versions 2.6.0 to 2.6.6, allows for use after free conditions which can cause undefined behavior and memory leaks. This issue may enable an attacker to exploit the vulnerable application by sending crafted network buffers to a remote peer, potentially leading to remote execution of code.

Affected Version(s)

Access Server Linux 2.11.0 <= 2.11.3

Access Server Linux 2.12.0 <= 2.12.2

OpenVPN 2 (Community) 2.6.0 <= 2.6.6

References

https://community.openvpn.net/openvpn/wiki/CVE-2023-46850
https://openvpn.net/security-advisory/access-server-secur...
https://www.debian.org/security/2023/dsa-5555

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.