CVSS: 10.0EPSS: 5%CPEs: 5EXPL: 0CVE-2023-46850 – Ubuntu Security Notice USN-6484-1
https://notcve.org/view.php?id=CVE-2023-46850
11 Nov 2023 — Use after free in OpenVPN version 2.6.0 to 2.6.6 may lead to undefined behavoir, leaking memory buffers or remote execution when sending network buffers to a remote peer. Use after free en OpenVPN versión 2.6.0 a 2.6.6 puede provocar un comportamiento indefinido, pérdida de búferes de memoria o ejecución remota al enviar búferes de red a un par remoto. It was discovered that OpenVPN incorrectly handled the --fragment option in certain configurations. A remote attacker could possibly use this issue to cause ... • https://community.openvpn.net/openvpn/wiki/CVE-2023-46850 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 1%CPEs: 6EXPL: 0CVE-2023-46849 – Ubuntu Security Notice USN-6484-1
https://notcve.org/view.php?id=CVE-2023-46849
11 Nov 2023 — 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. El uso de la opción --fragment en ciertas configuraciones de OpenVPN versión 2.6.0 a 2.6.6 permite a un atacante desencadenar un comportamiento de división por cero que podría provocar un bloqueo de la aplicación y provocar una denegación de servicio. It was discovered that OpenVPN incorrect... • https://community.openvpn.net/openvpn/wiki/CVE-2023-46849 • CWE-369: Divide By Zero •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-4234
https://notcve.org/view.php?id=CVE-2021-4234
06 Jul 2022 — OpenVPN Access Server 2.10 and prior versions are susceptible to resending multiple packets in a response to a reset packet sent from the client which the client again does not respond to, resulting in a limited amplification attack. OpenVPN Access Server versiones 2.10 y versiones anteriores, son susceptibles de reenviar múltiples paquetes en respuesta a un paquete de reinicio enviado desde el cliente al que éste no responde de nuevo, resultando en un ataque de amplificación limitada • https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-11-0 • CWE-406: Insufficient Control of Network Message Volume (Network Amplification) •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2022-33738
https://notcve.org/view.php?id=CVE-2022-33738
06 Jul 2022 — OpenVPN Access Server before 2.11 uses a weak random generator used to create user session token for the web portal OpenVPN Access Server versiones anteriores a 2.11, usa un generador aleatorio débil para crear un token de sesión de usuario para el portal web • https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-11-0 • CWE-331: Insufficient Entropy CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2022-33737
https://notcve.org/view.php?id=CVE-2022-33737
06 Jul 2022 — The OpenVPN Access Server installer creates a log file readable for everyone, which from version 2.10.0 and before 2.11.0 may contain a random generated admin password El instalador de OpenVPN Access Server crea un archivo de registro legible para todo el mundo, que a partir de la versión 2.10.0 y versiones anteriores a 2.11.0, puede contener una contraseña de administrador generada aleatoriamente • https://openvpn.net/vpn-server-resources/release-notes • CWE-532: Insertion of Sensitive Information into Log File CWE-708: Incorrect Ownership Assignment •
CVSS: 6.1EPSS: 0%CPEs: 1EXPL: 0CVE-2021-3824
https://notcve.org/view.php?id=CVE-2021-3824
23 Sep 2021 — OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL. OpenVPN Access Server versiones 2.9.0 hasta 2.9.4, permiten a atacantes remotos inyectar script web o HTML arbitrario por medio de la URL de la página de inicio de sesión • https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-9-5 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-84: Improper Neutralization of Encoded URI Schemes in a Web Page •
CVSS: 7.5EPSS: 2%CPEs: 1EXPL: 0CVE-2020-36382
https://notcve.org/view.php?id=CVE-2020-36382
04 Jun 2021 — OpenVPN Access Server 2.7.3 to 2.8.7 allows remote attackers to trigger an assert during the user authentication phase via incorrect authentication token data in an early phase of the user authentication resulting in a denial of service. OpenVPN Access Server versiones 2.7.3 a 2.8.7, permite a atacantes remotos desencadenar una aserción durante la fase de autenticación del usuario por medio de datos de token de autenticación incorrectos en una fase temprana de la autenticación del usuario, resultando en una... • https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077-cve-2020-36382 • CWE-617: Reachable Assertion CWE-754: Improper Check for Unusual or Exceptional Conditions •
CVSS: 5.3EPSS: 0%CPEs: 1EXPL: 0CVE-2020-15077
https://notcve.org/view.php?id=CVE-2020-15077
04 Jun 2021 — OpenVPN Access Server 2.8.7 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks. OpenVPN Access Server versiones 2.8.7 y anteriores, permiten a atacantes remotos omitir la autenticación y los datos del canal de control de acceso en servidores configurados con autenticación diferida, que puede ser usado para desencadenar potencialmente nuev... • https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077 • CWE-287: Improper Authentication CWE-305: Authentication Bypass by Primary Weakness •
CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0CVE-2020-15074
https://notcve.org/view.php?id=CVE-2020-15074
14 Jul 2020 — OpenVPN Access Server older than version 2.8.4 and version 2.9.5 generates new user authentication tokens instead of reusing exiting tokens on reconnect making it possible to circumvent the initial token expiry timestamp. El servidor de acceso OpenVPN anterior a la versión 2.8.4 y la versión 2.9.5 genera nuevos tokens de autenticación de usuario en lugar de reutilizar los tokens existentes en la reconexión, lo que permite eludir la marca de tiempo de caducidad del token inicial • https://openvpn.net/vpn-server-resources/release-notes • CWE-302: Authentication Bypass by Assumed-Immutable Data CWE-613: Insufficient Session Expiration •
CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0CVE-2020-11462
https://notcve.org/view.php?id=CVE-2020-11462
04 May 2020 — An issue was discovered in OpenVPN Access Server before 2.7.0 and 2.8.x before 2.8.3. With the full featured RPC2 interface enabled, it is possible to achieve a temporary DoS state of the management interface when sending an XML Entity Expansion (XEE) payload to the XMLRPC based RPC2 interface. The duration of the DoS state depends on available memory and CPU speed. The default restricted mode of the RPC2 interface is NOT vulnerable. Se ha descubierto un problema en OpenVPN Access Server versiones anteriore... • https://openvpn.net/vpn-server-resources/release-notes/#Release_notes_for_OpenVPN_Access_Server_283 • CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') •