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CVSS: 5.9EPSS: 1%CPEs: 9EXPL: 0

CVE-2017-7521

https://notcve.org/view.php?id=CVE-2017-7521

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension(). Las versiones de OpenVPN anteriores a 2.4.3 y 2.3.17, son vulnerables a una denegación de servicio remota debido a un agotamiento de memoria causado por pérdida de memoria y un problema de doble liberación (Double Free) en la función extract_x509_extension(). • http://www.debian.org/security/2017/dsa-3900 http://www.securityfocus.com/bid/99230 http://www.securitytracker.com/id/1038768 https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243 • CWE-400: Uncontrolled Resource Consumption CWE-415: Double Free CWE-772: Missing Release of Resource after Effective Lifetime •

CVSS: 7.5EPSS: 23%CPEs: 10EXPL: 1

CVE-2017-7478 – OpenVPN 2.4.0 - Denial of Service

https://notcve.org/view.php?id=CVE-2017-7478

OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is fixed in 2.3.15 and 2.4.2. OpenVPN versión 2.3.12 y más recientes, son vulnerables a la Denegación de Servicio no autenticada del servidor por medio de un paquete de control grande recibido. Tenga en cuenta que este problema se corrige en versiones 2.3.15 y 2.4.2. OpenVPN version 2.4.0 suffers from an unauthenticated denial of service vulnerability. • https://www.exploit-db.com/exploits/41993 http://www.securityfocus.com/bid/98444 http://www.securitytracker.com/id/1038473 https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits • CWE-20: Improper Input Validation CWE-617: Reachable Assertion •

CVSS: 6.5EPSS: 0%CPEs: 8EXPL: 0

CVE-2017-7479

https://notcve.org/view.php?id=CVE-2017-7479

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. OpenVPN versiones anteriores a 2.3.15 y anteriores a 2.4.2, son vulnerables a una aserción alcanzable cuando el contador del identificador de paquete se devuelve como resultado de una denegación de servicio del servidor por parte de un atacante autenticado. • http://www.debian.org/security/2017/dsa-3900 http://www.securityfocus.com/bid/98443 http://www.securitytracker.com/id/1038473 https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits • CWE-617: Reachable Assertion •

CVSS: 5.9EPSS: 0%CPEs: 1EXPL: 0

CVE-2016-6329

https://notcve.org/view.php?id=CVE-2016-6329

OpenVPN, when using a 64-bit block cipher, makes it easier for remote attackers to obtain cleartext data via a birthday attack against a long-duration encrypted session, as demonstrated by an HTTP-over-OpenVPN session using Blowfish in CBC mode, aka a "Sweet32" attack. OpenVPN, cuando utiliza un cifrado de bloques de 64 bits, facilita a atacantes remotos obtener datos de texto plano a través de un ataque birthday contra una sesión encriptada de larga duración, como lo demuestra una sesión HTTP-over-OpenVPN usando Blowfish en modo CBC, también conocido como ataque "Sweet32". • http://www-01.ibm.com/support/docview.wss?uid=nas8N1021697 http://www-01.ibm.com/support/docview.wss?uid=swg21991482 http://www-01.ibm.com/support/docview.wss?uid=swg21995039 http://www.securityfocus.com/bid/92631 http://www.securitytracker.com/id/1036695 https://cert-portal.siemens.com/productcert/pdf/ssa-556833.pdf https://community.openvpn.net/openvpn/wiki/SWEET32 https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05369403 https://security.gentoo&# • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-310: Cryptographic Issues •

CVSS: 6.8EPSS: 0%CPEs: 142EXPL: 0

CVE-2014-8104

https://notcve.org/view.php?id=CVE-2014-8104

OpenVPN 2.x before 2.0.11, 2.1.x, 2.2.x before 2.2.3, and 2.3.x before 2.3.6 allows remote authenticated users to cause a denial of service (server crash) via a small control channel packet. OpenVPN 2.x anterior a 2.0.11, 2.1.x, 2.2.x anterior a 2.2.3, y 2.3.x anterior a 2.3.6 permite a usuarios remotos autenticados causar una denegación de servicio (caída del servidor) a través de un paquete de canal de control pequeño. • http://advisories.mageia.org/MGASA-2014-0512.html http://lists.opensuse.org/opensuse-security-announce/2014-12/msg00008.html http://www.debian.org/security/2014/dsa-3084 http://www.mandriva.com/security/advisories?name=MDVSA-2015:139 http://www.ubuntu.com/usn/USN-2430-1 https://community.openvpn.net/openvpn/wiki/SecurityAnnouncement-97597e732b • CWE-399: Resource Management Errors •