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CVSS: 6.5EPSS: 0%CPEs: 71EXPL: 0

On BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, 11.6.0-11.6.3.2, or 11.2.1-11.5.6, BIG-IQ Centralized Management 6.0.0-6.0.1, 5.0.0-5.4.0 or 4.6.0, BIG-IQ Cloud and Orchestration 1.0.0, iWorkflow 2.0.1-2.3.0, or Enterprise Manager 3.1.1 a BIG-IP user granted with tmsh access may cause the BIG-IP system to experience denial-of-service (DoS) when the BIG-IP user uses the tmsh utility to run the edit cli preference command and proceeds to save the changes to another filename repeatedly. This action utilises storage space on the /var partition and when performed repeatedly causes the /var partition to be full. En BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, 11.6.0-11.6.3.2 o 11.2.1-11.5.6; BIG-IQ Centralized Management 6.0.0-6.0.1, 5.0.0-5.4.0 o 4.6.0; BIG-IQ Cloud and Orchestration 1.0.0; iWorkflow 2.0.1-2.3.0 o Enterprise Manager 3.1.1, un usuario BIG-IP con acceso tmsh podría provocar que el sistema BIG-IP experimente una denegación de servicio (DoS) cuando este usuario emplea la utilidad tmsh para ejecutar el comando de preferencias edit cli y guarda los cambios repetidamente en otro nombre de archivo. Esta acción emplea almacenamiento de la partición /var y, cuando se realiza repetidamente, provoca que la partición /var se llene. • https://support.f5.com/csp/article/K28003839 •

CVSS: 7.8EPSS: 0%CPEs: 39EXPL: 0

On BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.1, or 12.1.0-12.1.3.6, malicious requests made to virtual servers with an HTTP profile can cause the TMM to restart. The issue is exposed with the non-default "normalize URI" configuration options used in iRules and/or BIG-IP LTM policies. En BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.1 o 12.1.0-12.1.3.6, las peticiones maliciosas realizadas a los servidores virtuales con un perfil HTTP pueden provocar que TMM se reinicie. El problema está expuesto a las opciones de configuración "normalize URI", que no son por defecto, que se emplean en las políticas iRules y/o BIG-IP LTM. • http://www.securityfocus.com/bid/107052 https://support.f5.com/csp/article/K64208870 • CWE-20: Improper Input Validation •

CVSS: 7.8EPSS: 1%CPEs: 152EXPL: 0

The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size. El kernel de Linux en versiones a partir de la 3.9 es vulnerable a un ataque de denegación de servicio (DoS) con tasas bajas de paquetes especialmente modificados que apuntan hacia el reensamblado de fragmentos de IP. • http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-004.txt http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-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/105108 http://www.securitytracker.com/id/1041476 http://www.securitytracker.com/id/1041637 https://access.redhat.co • CWE-20: Improper Input Validation CWE-400: Uncontrolled Resource Consumption •

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: 52EXPL: 0

On F5 BIG-IP 14.0.0, 13.0.0-13.1.0, 12.1.0-12.1.3, or 11.5.1-11.6.3 specifically crafted HTTP responses, when processed by a Virtual Server with an associated QoE profile that has Video enabled, may cause TMM to incorrectly buffer response data causing the TMM to restart resulting in a Denial of Service. En F5 BIG-IP 14.0.0, 13.0.0-13.1.0, 12.1.0-12.1.3 o 11.5.1-11.6.3, las respuestas HTTP específicamente manipuladas, al ser procesadas por un servidor virtual con un perfil QoE asociado que tiene el vídeo habilitado, podrían provocar que el TMM almacene en el búfer incorrectamente respuestas de datos. Esto provocaría el reinicio del TMM y una denegación de servicio (DoS). • http://www.securitytracker.com/id/1041344 https://support.f5.com/csp/article/K19634255 • CWE-20: Improper Input Validation •