CVSS: 7.0EPSS: 0%CPEs: 8EXPL: 0CVE-2016-10088 – kernel: Use after free in SCSI generic device interface (CVE-2016-9576 regression)
https://notcve.org/view.php?id=CVE-2016-10088
The sg implementation in the Linux kernel through 4.9 does not properly restrict write operations in situations where the KERNEL_DS option is set, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device, related to block/bsg.c and drivers/scsi/sg.c. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9576. La implementación sg en el kernel Linux hasta la versión 4.9 no restringe correctamente operaciones de escritura en situaciones donde la opción KERNEL_DS está activa, lo que permite a usuarios locales leer o escribir a ubicacioes arbitrarias de memoria de kernel o provocar una denegación de servicio (uso despues de liberación) aprovechando el acceso al dispositivo /dev/sg, relacionado con block/bsg.c y drivers/scsi/sg.c. NOTA: esta vulnerabilidad existe debido a una reparación incompleta de CVE-2016-9576. It was found that the fix for CVE-2016-9576 was incomplete: the Linux kernel's sg implementation did not properly restrict write operations in situations where the KERNEL_DS option is set. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=128394eff343fc6d2f32172f03e24829539c5835 http://rhn.redhat.com/errata/RHSA-2017-0817.html http://www.openwall.com/lists/oss-security/2016/12/30/1 http://www.securityfocus.com/bid/95169 http://www.securitytracker.com/id/1037538 https://access.redhat.com/errata/RHSA-2017:1842 https://access.redhat.com/errata/RHSA-2017:2077 https://access.redhat.com/errata/RHSA-2017:2669 https://github.com/torvalds/linux • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2016-9588 – Kernel: kvm: nVMX: uncaught software exceptions in L1 guest leads to DoS
https://notcve.org/view.php?id=CVE-2016-9588
arch/x86/kvm/vmx.c in the Linux kernel through 4.9 mismanages the #BP and #OF exceptions, which allows guest OS users to cause a denial of service (guest OS crash) by declining to handle an exception thrown by an L2 guest. arch/x86/kvm/vmx.c en el kernek de Linux hasta la versión 4.9 no gestiona adecuadamente las excepciones #BP y #OF, lo que permite a usuarios del SO invitados provocar una denegación de servicio (caída del SO invitado) declinando el manejo de una excepción lanzada por un invitado L2. Linux kernel built with the KVM visualization support (CONFIG_KVM), with nested visualization(nVMX) feature enabled(nested=1), is vulnerable to an uncaught exception issue. It could occur if an L2 guest was to throw an exception which is not handled by an L1 guest. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ef85b67385436ddc1998f45f1d6a210f935b3388 http://www.debian.org/security/2017/dsa-3804 http://www.openwall.com/lists/oss-security/2016/12/15/3 http://www.securityfocus.com/bid/94933 https://access.redhat.com/errata/RHSA-2017:1842 https://access.redhat.com/errata/RHSA-2017:2077 https://bugzilla.redhat.com/show_bug.cgi?id=1404924 https://github.com/torvalds/linux/commit/ef85b67385436ddc1998f45f1d6a210f935b3388 https:/&#x • CWE-248: Uncaught Exception CWE-388: 7PK - Errors •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2016-9756
https://notcve.org/view.php?id=CVE-2016-9756
arch/x86/kvm/emulate.c in the Linux kernel before 4.8.12 does not properly initialize Code Segment (CS) in certain error cases, which allows local users to obtain sensitive information from kernel stack memory via a crafted application. arch/x86/kvm/emulate.c en el kernel de Linux en versiones anteriores a 4.8.12 no inicializa adecuadamente Code Segment (CS) en ciertos casos de error, lo que permite a usuarios locales obtener información sensible del kernel de memoria de pila a través de una aplicación manipulada. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2117d5398c81554fbf803f5fd1dc55eb78216c0c http://lists.opensuse.org/opensuse-security-announce/2017-01/msg00000.html http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12 http://www.openwall.com/lists/oss-security/2016/12/01/1 http://www.securityfocus.com/bid/94615 https://bugzilla.redhat.com/show_bug.cgi?id=1400468 https://github.com/torvalds/linux/commit/2117d5398c81554fbf803f5fd1dc55eb78216c0c • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2016-9777
https://notcve.org/view.php?id=CVE-2016-9777
KVM in the Linux kernel before 4.8.12, when I/O APIC is enabled, does not properly restrict the VCPU index, which allows guest OS users to gain host OS privileges or cause a denial of service (out-of-bounds array access and host OS crash) via a crafted interrupt request, related to arch/x86/kvm/ioapic.c and arch/x86/kvm/ioapic.h. KVM en el kernel de Linux en versiones anteriores a 4.8.12, cuando se habilita I/O APIC, no restringe adecuadamente el índice VCPU, lo que permite a usuarios de SO invitados obtener privilegios del SO de anfitrión o provocar una denegación de servicio (acceso al array fuera de rango y caída del SO anfitrión) a través de una petición interrumpida manipulada, relacionado con arch/x86/kvm/ioapic.c y arch/x86/kvm/ioapic.h. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12 http://www.openwall.com/lists/oss-security/2016/12/02/2 http://www.securityfocus.com/bid/94640 https://bugzilla.redhat.com/show_bug.cgi?id=1400804 https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755 • CWE-125: Out-of-bounds Read •
CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 0CVE-2016-9806 – kernel: netlink: double-free in netlink_dump
https://notcve.org/view.php?id=CVE-2016-9806
Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated. Condición de carrera en la función netlink_dump en net/netlink/af_netlink.c en el kernel de Linux en versiones anteriores a 4.6.3 permite a usuarios locales provocar una denegación de servicio (liberación doble) o posiblemente tener otro impacto no especificado a través de una aplicación manipulada que realiza llamadas al sistema sendmsg, conduciendo a una operación libre asociada con un nuevo volcado que comenzó antes de lo anticipado. A double free vulnerability was found in netlink_dump, which could cause a denial of service or possibly other unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520 http://lists.openwall.net/netdev/2016/05/15/69 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3 http://www.openwall.com/lists/oss-security/2016/12/03/4 http://www.securityfocus.com/bid/94653 http://www.securitytracker.com/id/1037968 https://access.redhat.com/errata/RHSA-2017:1842 https://access.redhat.com/errata/RHSA-2017:2077 https://access& • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-415: Double Free CWE-416: Use After Free •