PT-2023-8897 · Openvpn+3 · Openvpn+3

Published 2023-11-10 · Updated 2024-08-14 · CVE-2023-46850

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions OpenVPN versions 2.6.0 through 2.6.6

Description The issue is related to a use after free condition in OpenVPN, which may lead to undefined behavior, leaking memory buffers, or remote execution when sending network buffers to a remote peer. This could potentially allow a remote attacker to cause a denial of service.

Recommendations For OpenVPN versions 2.6.0 through 2.6.6, update to a version that contains a fix for this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2023-7171

ALT-PU-2024-10859

ALT-PU-2024-10885

BDU:2024-02574

CVE-2023-46850

DSA-5555-1

OPENSUSE-SU-2024:13429-1

USN-6484-1

Affected Products

Alt Linux

Openvpn

Red Os

Ubuntu

References · 37

• https://community.openvpn.net/openvpn/wiki/CVE-2023-46850 · Vendor Advisory
• https://debian.org/security/2023/dsa-5555 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-46850 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5555-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-46850 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-46850 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-02574 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE · Vendor Advisory
• https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-46850 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-46849 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6484-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-46850 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:13429-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-46850 · Security Note