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CVSS: 7.8EPSS: 13%CPEs: 127EXPL: 0

06 Aug 2018 — 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 pac... • http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-004.txt • CWE-400: Uncontrolled Resource Consumption •

CVSS: 7.8EPSS: 0%CPEs: 92EXPL: 1

06 Jul 2018 — The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non... • https://www.exploit-db.com/exploits/45033 • CWE-269: Improper Privilege Management CWE-284: Improper Access Control •

CVSS: 8.2EPSS: 0%CPEs: 27EXPL: 0

07 Jun 2018 — m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams. m_cat en slirp/mbuf.c en Qemu tiene un desbordamiento de búfer basado en memoria dinámica (heap) mediante los datagramas entrantes fragmentados. A heap buffer overflow issue was found in the way SLiRP networking back-end in QEMU processes fragmented packets. It could occur while reassembling the fragmented datagrams of an incoming packet. A privileged user/process inside guest could use this flaw to crash the Q... • http://www.openwall.com/lists/oss-security/2018/06/07/1 • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •

CVSS: 5.6EPSS: 46%CPEs: 665EXPL: 7

21 May 2018 — Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB), Variant 4. Los sistemas con microprocesadores que emplean la ejecución especulativa y que realizan la ejecución especulativa de lecturas de memoria antes de que se conozcan las direcciones de todas l... • https://packetstorm.news/files/id/147839 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-203: Observable Discrepancy •

CVSS: 8.0EPSS: 0%CPEs: 24EXPL: 0

08 May 2018 — kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to cra... • http://www.openwall.com/lists/oss-security/2018/05/08/5 • CWE-250: Execution with Unnecessary Privileges •

CVSS: 7.8EPSS: 0%CPEs: 29EXPL: 0

02 May 2018 — The do_get_mempolicy function in mm/mempolicy.c in the Linux kernel before 4.12.9 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted system calls. La función do_get_mempolicy en mm/mempolicy.c en el kernel de Linux, en versiones anteriores a la 4.12.9, permite que los usuarios locales provoquen una denegación de servicio (uso de memoria previamente liberada) o, posiblemente, causen otros impactos no especificados mediante llamadas del siste... • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=73223e4e2e3867ebf033a5a8eb2e5df0158ccc99 • CWE-416: Use After Free •

CVSS: 9.8EPSS: 0%CPEs: 39EXPL: 0

20 Mar 2018 — org.slf4j.ext.EventData in the slf4j-ext module in QOS.CH SLF4J before 1.8.0-beta2 allows remote attackers to bypass intended access restrictions via crafted data. EventData in the slf4j-ext module in QOS.CH SLF4J, has been fixed in SLF4J versions 1.7.26 later and in the 2.0.x series. org.slf4j.ext.EventData en el módulo slf4j-ext en QOS.CH SLF4J antes de la versión 1.8.0-beta2 permite a los atacantes remotos saltarse las restricciones de acceso previstas a través de datos manipulados. EventData en el módul... • http://www.securityfocus.com/bid/103737 • CWE-502: Deserialization of Untrusted Data •

CVSS: 8.1EPSS: 0%CPEs: 23EXPL: 0

16 Mar 2018 — A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory. Se ha encontrado un error en la implementación de la interfaz syscall de 32 bits para puentes de red (bridging) en el kernel de las versiones 4.x de Linux. Esto permitía que un usuario privilegiado escribiese de forma arbitraria en un rango limitado de memoria del kernel. A flaw was found in the Linux kernel's implementat... • http://www.securityfocus.com/bid/103459 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •

CVSS: 9.8EPSS: 22%CPEs: 23EXPL: 5

13 Mar 2018 — transport.py in the SSH server implementation of Paramiko before 1.17.6, 1.18.x before 1.18.5, 2.0.x before 2.0.8, 2.1.x before 2.1.5, 2.2.x before 2.2.3, 2.3.x before 2.3.2, and 2.4.x before 2.4.1 does not properly check whether authentication is completed before processing other requests, as demonstrated by channel-open. A customized SSH client can simply skip the authentication step. transport.py en la implementación del servidor SSH de Paramiko, en versiones anteriores a la 1.17.6; versiones 1.18.x ante... • https://packetstorm.news/files/id/150020 • CWE-287: Improper Authentication •

CVSS: 7.8EPSS: 0%CPEs: 14EXPL: 0

12 Feb 2018 — The futex_requeue function in kernel/futex.c in the Linux kernel before 4.14.15 might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value. La función futex_requeue en kernel/futex.c en el kernel de Linux, en versiones anteriores a la 4.14.15, podría permitir que atacantes provoquen una denegación de servicio (desbordamiento de enteros) o que puedan causar otro tipo de impacto sin especificar desencadenando u... • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fbe0e839d1e22d88810f3ee3e2f1479be4c0aa4a • CWE-190: Integer Overflow or Wraparound •