CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2017-15951
https://notcve.org/view.php?id=CVE-2017-15951
The KEYS subsystem in the Linux kernel before 4.13.10 does not correctly synchronize the actions of updating versus finding a key in the "negative" state to avoid a race condition, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls. El subsistema KEYS en el kernel de Linux en versiones anteriores a la 4.13.10 no sincroniza correctamente las acciones de actualización con las de detección de una clave en el estado "negative" para evitar una condición de carrera, lo que permite que los usuarios locales provoquen una denegación de servicio (DoS) o, posiblemente, cause otro impacto no especificado mediante llamadas al sistema manipuladas. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=363b02dab09b3226f3bd1420dad9c72b79a42a76 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.10 http://www.securityfocus.com/bid/101621 https://github.com/torvalds/linux/commit/363b02dab09b3226f3bd1420dad9c72b79a42a76 • CWE-20: Improper Input Validation •
CVSS: 8.8EPSS: 0%CPEs: 16EXPL: 7CVE-2017-5123 – Linux Kernel 4.13 (Ubuntu 17.10) - 'waitid()' SMEP/SMAP/Chrome Sandbox Privilege Escalation
https://notcve.org/view.php?id=CVE-2017-5123
Insufficient data validation in waitid allowed an user to escape sandboxes on Linux. Una comprobación de datos insuficiente en waitid permitía a un usuario escapar de los sandbox en Linux • https://www.exploit-db.com/exploits/43127 https://www.exploit-db.com/exploits/43029 https://github.com/c3r34lk1ll3r/CVE-2017-5123 https://github.com/0x5068656e6f6c/CVE-2017-5123 https://github.com/FloatingGuy/CVE-2017-5123 https://github.com/teawater/CVE-2017-5123 https://github.com/h1bAna/CVE-2017-5123 https://crbug.com/772848 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96ca579a1ecc943b75beba58bebb0356f6cc4b51 https://security.netapp.com/adviso • CWE-20: Improper Input Validation •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 2CVE-2017-15649 – Linux Kernel - 'AF_PACKET' Use-After-Free
https://notcve.org/view.php?id=CVE-2017-15649
net/packet/af_packet.c in the Linux kernel before 4.13.6 allows local users to gain privileges via crafted system calls that trigger mishandling of packet_fanout data structures, because of a race condition (involving fanout_add and packet_do_bind) that leads to a use-after-free, a different vulnerability than CVE-2017-6346. net/packet/af_packet.c en versiones anteriores a la 4.13.6 del kernel de Linux permite que usuarios locales obtengan privilegios mediante llamadas manipuladas al sistema que dan lugar a una gestión incorrecta de las estructuras de datos packet_fanout. Esto se debe a una condición de carrera (que afecta a fanout_add y packet_do_bind) que da lugar a un uso de memoria previamente liberada. Esta vulnerabilidad es diferente de CVE-2017-6346. It was found that fanout_add() in 'net/packet/af_packet.c' in the Linux kernel, before version 4.13.6, allows local users to gain privileges via crafted system calls that trigger mishandling of packet_fanout data structures, because of a race condition (involving fanout_add and packet_do_bind) that leads to a use-after-free bug. • https://www.exploit-db.com/exploits/44053 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=008ba2a13f2d04c947adc536d19debb8fe66f110 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4971613c1639d8e5f102c4e797c3bf8f83a5a69e http://patchwork.ozlabs.org/patch/813945 http://patchwork.ozlabs.org/patch/818726 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6 http://www.securityfocus.com/bid/101573 https://access.redhat.com/errata/RHSA- • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 7.5EPSS: 0%CPEs: 10EXPL: 0CVE-2017-7558 – kernel: Out of bounds read in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() in SCTP stack
https://notcve.org/view.php?id=CVE-2017-7558
A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic information. As a result, up to 100 bytes of the slab data could be leaked to a userspace. Se ha encontrado una fuga de datos del kernel debido a una lectura fuera de límites en el kernel de Linux en las funciones inet_diag_msg_sctp{,l}addr_fill() y sctp_get_sctp_info() presentes desde la versión 4.7-rc1 hasta la versión 4.13. Ocurre una fuga de datos cuando estas funciones rellenan las estructuras de datos sockaddr utilizadas para exportar la información de diagnóstico del socket. • http://seclists.org/oss-sec/2017/q3/338 http://www.securityfocus.com/bid/100466 http://www.securitytracker.com/id/1039221 https://access.redhat.com/errata/RHSA-2017:2918 https://access.redhat.com/errata/RHSA-2017:2930 https://access.redhat.com/errata/RHSA-2017:2931 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7558 https://marc.info/?l=linux-netdev&m=150348777122761&w=2 https://www.debian.org/security/2017/dsa-3981 https://access.redhat.com/security/cv • CWE-125: Out-of-bounds Read •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2017-15537
https://notcve.org/view.php?id=CVE-2017-15537
The x86/fpu (Floating Point Unit) subsystem in the Linux kernel before 4.13.5, when a processor supports the xsave feature but not the xsaves feature, does not correctly handle attempts to set reserved bits in the xstate header via the ptrace() or rt_sigreturn() system call, allowing local users to read the FPU registers of other processes on the system, related to arch/x86/kernel/fpu/regset.c and arch/x86/kernel/fpu/signal.c. El subsistema x86/fpu (Floating Point Unit) en el kernel de Linux en versiones anteriores a la 4.13.5, cuando un procesador soporta la característica xsave pero no la xsaves, no gestiona correctamente los intentos de establecer bits reservados en la cabecera xstate mediante las llamadas de sistema ptrace() o rt_sigreturn(), lo que permite que usuarios locales lean los registros FPU de otros procesos en el sistema, relacionado con arch/x86/kernel/fpu/regset.c y arch/x86/kernel/fpu/signal.c. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=814fb7bb7db5433757d76f4c4502c96fc53b0b5e http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5 https://github.com/torvalds/linux/commit/814fb7bb7db5433757d76f4c4502c96fc53b0b5e https://source.android.com/security/bulletin/pixel/2018-01-01 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •