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CVSS: 10.0EPSS: 2%CPEs: 17EXPL: 0

mod_perl 2.0 through 2.0.10 allows attackers to execute arbitrary Perl code by placing it in a user-owned .htaccess file, because (contrary to the documentation) there is no configuration option that permits Perl code for the administrator's control of HTTP request processing without also permitting unprivileged users to run Perl code in the context of the user account that runs Apache HTTP Server processes. mod_perl 2.0 hasta la versión 2.0.10 permite que los atacantes ejecuten código Perl colocándolo en un archivo .htaccess propiedad del usuario, debido a que (al contrario de lo que pone en la documentación) no hay una opción de configuración que permita el código Perl para el control de administrador del procesamiento de peticiones HTTP sin permitir también que usuarios sin privilegios ejecuten código Perl en el contexto de la cuenta de usuario que ejecuta los procesos Apache HTTP Server. • http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00063.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00065.html http://www.securityfocus.com/bid/105195 https://access.redhat.com/errata/RHSA-2018:2737 https://access.redhat.com/errata/RHSA-2018:2825 https://access.redhat.com/errata/RHSA-2018:2826 https://bugs.debian.org/644169 https://lists.apache.org/thread.html/c8ebe8aad147a3ad2e7b0e8b2da45263171ab5d0fc7f8c100feaa94d%40%3Cmodperl-cvs.perl.apache.org%3E https://li • CWE-94: Improper Control of Generation of Code ('Code Injection') CWE-266: Incorrect Privilege Assignment •

CVSS: 7.5EPSS: 0%CPEs: 37EXPL: 1

dom4j version prior to version 2.1.1 contains a CWE-91: XML Injection vulnerability in Class: Element. Methods: addElement, addAttribute that can result in an attacker tampering with XML documents through XML injection. This attack appear to be exploitable via an attacker specifying attributes or elements in the XML document. This vulnerability appears to have been fixed in 2.1.1 or later. dom4j en versiones anteriores a la 2.1.1 contiene una vulnerabilidad CWE-91: Inyección XML en Clase: Element. Métodos: addElement, addAttribute que puede resulta en que un atacante manipule documentos XML mediante la inyección XML. • https://access.redhat.com/errata/RHSA-2019:0362 https://access.redhat.com/errata/RHSA-2019:0364 https://access.redhat.com/errata/RHSA-2019:0365 https://access.redhat.com/errata/RHSA-2019:0380 https://access.redhat.com/errata/RHSA-2019:1159 https://access.redhat.com/errata/RHSA-2019:1160 https://access.redhat.com/errata/RHSA-2019:1161 https://access.redhat.com/errata/RHSA-2019:1162 https://access.redhat.com/errata/RHSA-2019:3172 https://github.com/dom4j/dom4j/commit&# • CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') CWE-91: XML Injection (aka Blind XPath Injection) •

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: 5.5EPSS: 0%CPEs: 4EXPL: 0

It was found that SAML authentication in Keycloak 3.4.3.Final incorrectly authenticated expired certificates. A malicious user could use this to access unauthorized data or possibly conduct further attacks. Se ha descubierto que la autenticación SAML en Keycloak 3.4.3.Final autenticaba incorrectamente los certificados caducados. Un usuario malicioso podría aprovecharse de esto para acceder a datos no autorizados o, posiblemente, llevar a cabo más ataques. • https://access.redhat.com/errata/RHSA-2018:3592 https://access.redhat.com/errata/RHSA-2018:3593 https://access.redhat.com/errata/RHSA-2018:3595 https://access.redhat.com/errata/RHSA-2019:0877 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10894 https://access.redhat.com/security/cve/CVE-2018-10894 https://bugzilla.redhat.com/show_bug.cgi?id=1599434 • CWE-295: Improper Certificate Validation CWE-345: Insufficient Verification of Data Authenticity •