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CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0

CVE-2023-41913

https://notcve.org/view.php?id=CVE-2023-41913

strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message. strongSwan anterior a 5.9.12 tiene un desbordamiento del búfer y una posible ejecución remota de código no autenticado a través de un valor público DH que excede el búfer interno en el proxy DH de charon-tkm. La primera versión afectada es la 5.3.0. Un ataque puede ocurrir a través de un mensaje IKE_SA_INIT manipulado. • https://github.com/strongswan/strongswan/releases https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO https://www.strongswan.org/blog/2023/11/20/strongswan-vulnerability-%28cve-2023-41913%29.html • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •

CVSS: 7.5EPSS: 0%CPEs: 12EXPL: 0

CVE-2022-40617

https://notcve.org/view.php?id=CVE-2022-40617

strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data. strongSwan anterior a 5.9.8 permite a atacantes remotos provocar una Denegación de Servicio en el complemento de revocación enviando un certificado de entidad final (y CA intermedia) manipulado que contiene una URL CRL/OCSP que apunta a un servidor (bajo el control del atacante) que no responde adecuadamente pero (por ejemplo) simplemente no hace nada después del protocolo de enlace TCP inicial o envía una cantidad excesiva de datos de la aplicación. • https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3GAYIOCSLU57C45CO4UE4IV4JZE4W3L https://www.strongswan.org/blog/2022/10/03/strongswan-vulnerability-%28cve-2022-40617%29.html • CWE-400: Uncontrolled Resource Consumption •

CVSS: 9.1EPSS: 0%CPEs: 14EXPL: 0

CVE-2021-45079

https://notcve.org/view.php?id=CVE-2021-45079

In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication. En strongSwan versiones anteriores a 5.9.5, un respondedor malicioso puede enviar un mensaje EAP-Success demasiado pronto sin autenticar realmente al cliente y (en el caso de los métodos EAP con autenticación mutua y autenticación sólo EAP para IKEv2) incluso sin autenticación del servidor • https://www.strongswan.org/blog/2022/01/24/strongswan-vulnerability-%28cve-2021-45079%29.html • CWE-476: NULL Pointer Dereference •

CVSS: 7.5EPSS: 8%CPEs: 50EXPL: 0

CVE-2021-41991

https://notcve.org/view.php?id=CVE-2021-41991

The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of cache entries. The code attempts to select a less-often-used cache entry by means of a random number generator, but this is not done correctly. Remote code execution might be a slight possibility. La caché de certificados en memoria en strongSwan versiones anteriores a 5.9.4, presenta un desbordamiento de enteros remoto al recibir muchas peticiones con diferentes certificados para llenar la caché y posteriormente desencadenar la sustitución de las entradas de la caché. El código intenta seleccionar una entrada de caché menos usada mediante un generador de números aleatorios, pero esto no es realizado correctamente. • https://cert-portal.siemens.com/productcert/pdf/ssa-539476.pdf https://github.com/strongswan/strongswan/releases/tag/5.9.4 https://lists.debian.org/debian-lts-announce/2021/10/msg00014.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5FJSATD2R2XHTG4P63GCMQ2N7EWKMME5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WQSQ3BEC22NF4NCDZVCT4P3Q2ZIAJXGJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/mes • CWE-190: Integer Overflow or Wraparound •

CVSS: 7.5EPSS: 1%CPEs: 6EXPL: 0

CVE-2018-17540

https://notcve.org/view.php?id=CVE-2018-17540

The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate. El plugin gmp en strongSwan en versiones anteriores a la 5.7.1 tiene un desbordamiento de búfer mediante un certificado manipulado. • http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00077.html http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00047.html https://download.strongswan.org/security/CVE-2018-17540 https://lists.debian.org/debian-lts-announce/2018/10/msg00001.html https://security.gentoo.org/glsa/201811-16 https://usn.ubuntu.com/3774-1 https://www.debian.org/security/2018/dsa-4309 https://www.strongswan • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •