
CVE-2019-11811 – kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c
https://notcve.org/view.php?id=CVE-2019-11811
07 May 2019 — An issue was discovered in the Linux kernel before 5.0.4. There is a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module is removed, related to drivers/char/ipmi/ipmi_si_intf.c, drivers/char/ipmi/ipmi_si_mem_io.c, and drivers/char/ipmi/ipmi_si_port_io.c. Fue descubierto en un fallo en el kernel de Linux anterior a 5.0.4. Hay un uso después de liberación de memoria, una vez que intenta acceder a la lectura del modulo proc/ioports after the ipmi_si es eliminado, relacionado adr... • http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html • CWE-416: Use After Free •

CVE-2019-3900 – Kernel: vhost_net: infinite loop while receiving packets leads to DoS
https://notcve.org/view.php?id=CVE-2019-3900
25 Apr 2019 — An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario. Se encontró un problema de bucle infinito en el módulo del núcleo vhost_net en el kernel de Linux versiones anteriores a 5.1-rc6 inclusive, mientras ma... • http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVE-2019-3837
https://notcve.org/view.php?id=CVE-2019-3837
11 Apr 2019 — It was found that the net_dma code in tcp_recvmsg() in the 2.6.32 kernel as shipped in RHEL6 is thread-unsafe. So an unprivileged multi-threaded userspace application calling recvmsg() for the same network socket in parallel executed on ioatdma-enabled hardware with net_dma enabled can leak the memory, crash the host leading to a denial-of-service or cause a random memory corruption. Se encontró que el código net_dma en la función tcp_recvmsg() en el kernel versión 2.6.32 tal como fue enviado en RHEL6 es no... • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3837 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-401: Missing Release of Memory after Effective Lifetime •

CVE-2019-3887 – Kernel: KVM: nVMX: guest accesses L0 MSR causes potential DoS
https://notcve.org/view.php?id=CVE-2019-3887
09 Apr 2019 — A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue. Se encontró un error en la forma en que el hipervisor KVM manejaba el acceso a x2APIC Machine Specific Rre... • http://www.securityfocus.com/bid/107850 • CWE-863: Incorrect Authorization •

CVE-2019-3459 – kernel: Heap address information leak while using L2CAP_GET_CONF_OPT
https://notcve.org/view.php?id=CVE-2019-3459
03 Apr 2019 — A heap address information leak while using L2CAP_GET_CONF_OPT was discovered in the Linux kernel before 5.1-rc1. Se descubrió una fuga de información de direcciones en memoria dinámica mientras se usaba L2CAP_GET_CONF_OPT en el kernel de Linux anterior a 5.1-rc1. A flaw was found in the Linux kernel's implementation of Logical Link Control and Adaptation Protocol (L2CAP), part of the Bluetooth stack. An attacker, within the range of standard Bluetooth transmissions, can create and send a specially crafted ... • http://www.openwall.com/lists/oss-security/2019/06/27/2 • CWE-125: Out-of-bounds Read CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVE-2019-3460 – kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP
https://notcve.org/view.php?id=CVE-2019-3460
03 Apr 2019 — A heap data infoleak in multiple locations including L2CAP_PARSE_CONF_RSP was found in the Linux kernel before 5.1-rc1. Se ha descubierto una fuga de información en múltiples ubicaciones en memoria dinámica, incluyendo L2CAP_GET_CONF_OPT en el kernel de Linux anterior a 5.1-rc1. A flaw was found in the Linux kernel's implementation of logical link control and adaptation protocol (L2CAP), part of the Bluetooth stack in the l2cap_parse_conf_rsp and l2cap_parse_conf_req functions. An attacker with physical acc... • http://www.openwall.com/lists/oss-security/2019/06/27/2 • CWE-20: Improper Input Validation CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVE-2019-3874 – kernel: SCTP socket buffer memory leak leading to denial of service
https://notcve.org/view.php?id=CVE-2019-3874
25 Mar 2019 — The SCTP socket buffer used by a userspace application is not accounted by the cgroups subsystem. An attacker can use this flaw to cause a denial of service attack. Kernel 3.10.x and 4.18.x branches are believed to be vulnerable. El búfer del socket SCTP utilizado por una aplicación de espacio de usuario no es tenido en cuenta por el subsistema de cgroups. Un atacante podría explotar este error para lanzar un ataque de denegación de servicio. • https://access.redhat.com/errata/RHSA-2019:3309 • CWE-400: Uncontrolled Resource Consumption •

CVE-2019-9213 – Linux < 4.20.14 - Virtual Address 0 is Mappable via Privileged write() to /proc/*/mem
https://notcve.org/view.php?id=CVE-2019-9213
05 Mar 2019 — In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task. En el kernel de Linux, en versiones anteriores a la 4.20.14, expand_downwards en mm/mmap.c carece de una comprobación para la dirección mínima de mmap, lo que facilita que los atacantes exploten desreferencias de puntero NULL en el kernel en... • https://packetstorm.news/files/id/151991 • CWE-476: NULL Pointer Dereference •

CVE-2018-20784 – kernel: infinite loop in update_blocked_averages() in kernel/sched/fair.c leading to denial of service
https://notcve.org/view.php?id=CVE-2018-20784
22 Feb 2019 — In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq's, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load. En el kernel de Linux, en versiones anteriores a la 4.20.2, kernel/sched/fair.c gestiona leaf cfs_rq de manera incorrecta, lo que permite que los atacantes provoquen una denegación de servicio (bucle infinito en update_blocked_averages) o, posiblemente, otro impacto si... • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVE-2019-8912 – kernel: af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr
https://notcve.org/view.php?id=CVE-2019-8912
18 Feb 2019 — In the Linux kernel through 4.20.11, af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr. En el kernel de Linux, hasta la versión 4.20.11, af_alg_release() en crypto/af_alg.c no establece un valor NULL para cierto miembro de estructura, lo que conduce a un uso de memoria previamente liberada en sockfs_setattr. In the Linux kernel af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain struct... • http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html • CWE-416: Use After Free •