Page 581 of 2919 results (0.021 seconds)

CVSS: 7.0EPSS: 0%CPEs: 8EXPL: 0

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: 0

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: 7.8EPSS: 0%CPEs: 4EXPL: 0

The icmp6_send function in net/ipv6/icmp.c in the Linux kernel through 4.8.12 omits a certain check of the dst data structure, which allows remote attackers to cause a denial of service (panic) via a fragmented IPv6 packet. La función icmp6_send en net/ipv6/icmp.c en el kernel de Linux hasta la versión 4.8.12 omite una cierta comprobación de la estructura de datos dst, lo que permite a atacantes remotos provocar una denegación de servicio (pánico) a través de un paquete IPv6 fragmentado. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2 http://www.openwall.com/lists/oss-security/2016/12/08/15 http://www.securityfocus.com/bid/94824 https://github.com/torvalds/linux/commit/79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2 • CWE-20: Improper Input Validation •

CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 0

drivers/vfio/pci/vfio_pci.c in the Linux kernel through 4.8.11 allows local users to bypass integer overflow checks, and cause a denial of service (memory corruption) or have unspecified other impact, by leveraging access to a vfio PCI device file for a VFIO_DEVICE_SET_IRQS ioctl call, aka a "state machine confusion bug." drivers/vfio/pci/vfio_pci.c en el kernel Linux hasta la versión 4.8.11 permite a usuarios locales eludir comprobaciones de desbordamiento de enteros, y provocar una denegación de servicio (corrupción de memoria) o tener otro posible impacto no especificado, aprovechando el acceso al archivo de dispositivo vfio PCI para una llamada ioctl VFIO_DEVICE_SET_IRQS, vulnerabilidad también conocida como "state machine confusion bug". A flaw was discovered in the Linux kernel's implementation of VFIO. An attacker issuing an ioctl can create a situation where memory is corrupted and modify memory outside of the expected area. This may overwrite kernel memory and subvert kernel execution. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=05692d7005a364add85c6e25a6c4447ce08f913a http://rhn.redhat.com/errata/RHSA-2017-0386.html http://rhn.redhat.com/errata/RHSA-2017-0387.html http://www.openwall.com/lists/oss-security/2016/10/26/11 http://www.securityfocus.com/bid/93929 https://bugzilla.redhat.com/show_bug.cgi?id=1389258 https://github.com/torvalds/linux/commit/05692d7005a364add85c6e25a6c4447ce08f913a https://patchwork.kernel.org/patch/9373631 https:/&#x • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-190: Integer Overflow or Wraparound CWE-391: Unchecked Error Condition •

CVSS: 9.3EPSS: 0%CPEs: 2EXPL: 0

Stack-based buffer overflow in the SET_WPS_IE IOCTL implementation in wlan_hdd_hostapd.c in the WLAN (aka Wi-Fi) driver for the Linux kernel 3.x and 4.x, as used in Qualcomm Innovation Center (QuIC) Android contributions for MSM devices and other products, allows attackers to gain privileges via a crafted application that uses a long WPS IE element. Desbordamiento de buffer basado en pila en la implementación de SET_WPS_IE IOCTL en wlan_hdd_hostapd.c en el controlador WLAN (también conocido como Wi-Fi) para el kernel de Linux 3.x y 4.x, según se utiliza en Qualcomm Innovation Center (QuIC) Android contributions for MSM devices y otros productos, permite a atacantes obtener privilegios a través de una aplicación manipulada que utiliza un elemento WPS IE largo. • http://source.android.com/security/bulletin/2016-05-01.html http://www.securityfocus.com/bid/77691 https://www.codeaurora.org/projects/security-advisories/multiple-issues-wlan-driver-allow-local-privilege-escalation-cve-2015 • CWE-787: Out-of-bounds Write •