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CVSS: 7.8EPSS: 74%CPEs: 127EXPL: 0

Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service. El kernel de Linux en versiones 4.9 y siguientes pueden forzarse a realizar llamadas muy caras a tcp_collapse_ofo_queue() y tcp_prune_ofo_queue() para cada paquete entrante, lo que puede conducir a una denegación de servicio. A flaw named SegmentSmack was found in the way the Linux kernel handled specially crafted TCP packets. A remote attacker could use this flaw to trigger time and calculation expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() functions by sending specially modified packets within ongoing TCP sessions which could lead to a CPU saturation and hence a denial of service on the system. Maintaining the denial of service condition requires continuous two-way TCP sessions to a reachable open port, thus the attacks cannot be performed using spoofed IP addresses. • http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-004.txt http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20181031-02-linux-en http://www.openwall.com/lists/oss-security/2019/06/28/2 http://www.openwall.com/lists/oss-security/2019/07/06/3 http://www.openwall.com/lists/oss-security/2019/07/06/4 http://www.securityfocus.com/bid/104976 http://www.securitytracker.com/id/1041424 http://www.securitytracker.com/id/1041434 https://access.redhat.co • CWE-400: Uncontrolled Resource Consumption •

CVSS: 7.5EPSS: 0%CPEs: 27EXPL: 0

F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.5, or 11.6.0-11.6.3.1 virtual servers with HTTP/2 profiles enabled are vulnerable to "HPACK Bomb". Los servidores virtuales F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.5 o 11.6.0-11.6.3.1 con perfiles HTTP/2 habilitados son vulnerables a "HPACK Bomb". • http://www.securityfocus.com/bid/104908 https://support.f5.com/csp/article/K45611803 • CWE-400: Uncontrolled Resource Consumption •

CVSS: 5.3EPSS: 0%CPEs: 40EXPL: 0

A remote attacker may be able to disrupt services on F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, or 11.2.1-11.5.6 if the TMM virtual server is configured with a HTML or a Rewrite profile. TMM may restart while processing some specially prepared HTML content from the back end. Un atacante remoto podría ser capaz de interrumpir los servicios en F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1 o 11.2.1-11.5.6 si el servidor virtual TMM está configurado con un perfil HTML o Rewrite. TMM podría reiniciarse al procesar contenido HTML preparado del back end. • https://support.f5.com/csp/article/K94105051 • CWE-20: Improper Input Validation •

CVSS: 7.4EPSS: 0%CPEs: 52EXPL: 0

Through undisclosed methods, on F5 BIG-IP 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, or 11.2.1-11.5.6, adjacent network attackers can cause a denial of service for VCMP guest and host systems. Attack must be sourced from adjacent network (layer 2). Mediante métodos sin revelar, en on F5 BIG-IP 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1 o 11.2.1-11.5.6, los atacantes de red adyacentes pueden provocar una denegación de servicio (DoS) para los sistemas invitado y host VCMP. El ataque debe originarse desde una red adyacente (capa 2). • https://support.f5.com/csp/article/K64721111 • CWE-20: Improper Input Validation •

CVSS: 7.5EPSS: 0%CPEs: 65EXPL: 0

Under certain conditions on F5 BIG-IP 13.1.0-13.1.0.5, 13.0.0, 12.1.0-12.1.3.1, 11.6.0-11.6.3.1, or 11.5.0-11.5.6, TMM may core while processing SSL forward proxy traffic. Bajo ciertas condiciones en F5 BIG-IP 13.1.0-13.1.0.5, 13.0.0, 12.1.0-12.1.3.1, 11.6.0-11.6.3.1 o 11.5.0-11.5.6, TMM podría realizar un "core" al procesar tráfico SSL forward proxy. • http://www.securitytracker.com/id/1041343 https://support.f5.com/csp/article/K64552448 • CWE-20: Improper Input Validation •