CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 1CVE-2016-6198 – kernel: vfs: missing detection of hardlinks in vfs_rename() on overlayfs
https://notcve.org/view.php?id=CVE-2016-6198
The filesystem layer in the Linux kernel before 4.5.5 proceeds with post-rename operations after an OverlayFS file is renamed to a self-hardlink, which allows local users to cause a denial of service (system crash) via a rename system call, related to fs/namei.c and fs/open.c. La capa del sistema de archivos en el kernel de Linux en versiones anteriores a 4.5.5 procede con operaciones de cambio de nombre después de que un archivo OverlayFS es cambiado de nombre a un self-hardlink, lo que permite a usuarios locales provocar una denegación de servicio (caída de sistema) a través de una llamada al sistema, relacionado con fs/namei.c y fs/open.c. A flaw was found that the vfs_rename() function did not detect hard links on overlayfs. A local, unprivileged user could use the rename syscall on overlayfs on top of xfs to crash the system. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca http://rhn.redhat.com/errata/RHSA-2016-1847.html http://rhn.redhat.com/errata/RHSA-2016-1875.html http://rhn.redhat.com/errata/RHSA-2016-2574.html http://rhn.redhat.com/errata/RHSA-2016-2584.html http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5 • CWE-284: Improper Access Control CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 5.8EPSS: 0%CPEs: 4EXPL: 1CVE-2016-5696 – kernel: challenge ACK counter information disclosure.
https://notcve.org/view.php?id=CVE-2016-5696
net/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack. net/ipv4/tcp_input.c en el kernel de Linux en versiones anteriores a 4.7 no determina adecuadamente la tasa de segmentos de desafío ACK, lo que facilita a atacantes remotos secuestrar sesiones TCP a través de un ataque ciego en ventana. It was found that the RFC 5961 challenge ACK rate limiting as implemented in the Linux kernel's networking subsystem allowed an off-path attacker to leak certain information about a given connection by creating congestion on the global challenge ACK rate limit counter and then measuring the changes by probing packets. An off-path attacker could use this flaw to either terminate TCP connection and/or inject payload into non-secured TCP connection between two endpoints on the network. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758 http://rhn.redhat.com/errata/RHSA-2016-1631.html http://rhn.redhat.com/errata/RHSA-2016-1632.html http://rhn.redhat.com/errata/RHSA-2016-1633.html http://rhn.redhat.com/errata/RHSA-2016-1657.html http://rhn.redhat.com/errata/RHSA-2016-1664.html http://rhn.redhat.com/errata/RHSA-2016-1814.html http://rhn.redhat.com/errata/RHSA-2016-1815.html http://rhn. • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-203: Observable Discrepancy •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2016-5412 – Kernel: powerpc: kvm: Infinite loop via H_CEDE hypercall when running under hypervisor-mode
https://notcve.org/view.php?id=CVE-2016-5412
arch/powerpc/kvm/book3s_hv_rmhandlers.S in the Linux kernel through 4.7 on PowerPC platforms, when CONFIG_KVM_BOOK3S_64_HV is enabled, allows guest OS users to cause a denial of service (host OS infinite loop) by making a H_CEDE hypercall during the existence of a suspended transaction. arch/powerpc/kvm/book3s_hv_rmhandlers.S en el kernel de Linux hasta la versión 4.7 en plataformas PowerPC, cuando se encuentra habilitada CONFIG_KVM_BOOK3S_64_HV, permite a usuarios invitados del SO provocar una denegación de servicio (bucle infinito del SO anfitrión) haciendo una hiperllamada H_CEDE durante la existencia de una transacción suspendida. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=93d17397e4e2182fdaad503e2f9da46202c0f1c3 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f024ee098476a3e620232e4a78cfac505f121245 http://rhn.redhat.com/errata/RHSA-2016-2574.html http://www.openwall.com/lists/oss-security/2016/07/28/2 https://bugzilla.redhat.com/show_bug.cgi?id=1349916 https://github.com/torvalds/linux/commit/93d17397e4e2182fdaad503e2f9da46202c0f1c3 https://github.com/torvalds/linux/commit/ • CWE-399: Resource Management Errors CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2014-9888
https://notcve.org/view.php?id=CVE-2014-9888
arch/arm/mm/dma-mapping.c in the Linux kernel before 3.13 on ARM platforms, as used in Android before 2016-08-05 on Nexus 5 and 7 (2013) devices, does not prevent executable DMA mappings, which might allow local users to gain privileges via a crafted application, aka Android internal bug 28803642 and Qualcomm internal bug CR642735. arch/arm/mm/dma-mapping.c en el kernel de Linux en versiones anteriores 3.13 en las plataformas ARM, como se utiliza en Android en versiones anteriores a 2016-08-05 en dispositivos Nexus 5 y 7 (2013), no impide asignaciones DMA ejecutables, lo que permite a usuarios locales obtener privilegios a través de una aplicacion manipulada, también conocido como error interno de Android 28803642 y error interno de Qualcomm CR642735. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ea1ec713f04bdfac343c9702b21cd3a7c711826 http://source.android.com/security/bulletin/2016-08-01.html http://www.securityfocus.com/bid/92219 https://github.com/torvalds/linux/commit/0ea1ec713f04bdfac343c9702b21cd3a7c711826 https://source.codeaurora.org/quic/la/kernel/msm/commit/?id=f044936caab337a4384fbfe64a4cbae33c7e22a1 • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2014-9900
https://notcve.org/view.php?id=CVE-2014-9900
The ethtool_get_wol function in net/core/ethtool.c in the Linux kernel through 4.7, as used in Android before 2016-08-05 on Nexus 5 and 7 (2013) devices, does not initialize a certain data structure, which allows local users to obtain sensitive information via a crafted application, aka Android internal bug 28803952 and Qualcomm internal bug CR570754. La función ethtool_get_wol en net/core/ethtool.c en el kernel de Linux hasta la versión 4.7, como se usa en Android en versiones anteriores a 2016-08-05 en dispositivos Nexus 5 y 7 (2013), no inicializa una cierta estructura de datos, lo que permite a usuarios locales obtener información sensible a través de una aplicación manipulada, también conocido como error interno de Android 28803952 y error interno de Qualcomm CR570754. • http://source.android.com/security/bulletin/2016-08-01.html http://www.securityfocus.com/bid/92222 https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=63c317dbee97983004dffdd9f742a20d17150071 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •