CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2014-3646 – kernel: kvm: vmx: invvpid vm exit not handled
https://notcve.org/view.php?id=CVE-2014-3646
arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel through 3.17.2 does not have an exit handler for the INVVPID instruction, which allows guest OS users to cause a denial of service (guest OS crash) via a crafted application. arch/x86/kvm/vmx.c en el subsistema KVM en el kernel de Linux hasta 3.17.2 no tiene un manejador de salida para la instrucción INVVPID, lo que permite a usuarios del sistema operativo invitado causar una denegación de servicio (caída del sistema operativo invitado) a través de una aplicación manipulada. It was found that the Linux kernel's KVM subsystem did not handle the VM exits gracefully for the invvpid (Invalidate Translations Based on VPID) instructions. On hosts with an Intel processor and invppid VM exit support, an unprivileged guest user could use these instructions to crash the guest. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a642fc305053cc1c6e47e4f4df327895747ab485 http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html http://rhn.redhat.com/errata/RHSA-2015-0126.html http://rhn.redhat.com/errata/RHSA-2015-0284.html http://www.debian.org/security/2014/dsa-3060 http://www.openwall.com/lists/oss-security/2014/10/24/9 http://www. • CWE-248: Uncaught Exception •
CVSS: 4.9EPSS: 0%CPEs: 2EXPL: 3CVE-2014-7283 – kernel: xfs: directory hash ordering denial of service
https://notcve.org/view.php?id=CVE-2014-7283
The xfs_da3_fixhashpath function in fs/xfs/xfs_da_btree.c in the xfs implementation in the Linux kernel before 3.14.2 does not properly compare btree hash values, which allows local users to cause a denial of service (filesystem corruption, and OOPS or panic) via operations on directories that have hash collisions, as demonstrated by rmdir operations. La función xfs_da3_fixhashpath en fs/xfs/xfs_da_btree.c en la implementación xfs en el kernel de Linux anterior a 3.14.2 no compara debidamente los valores de hashes btree, lo que permite a usuarios locales causar una denegación de servicio (corrupción del sistema de ficheros y OOPS o pánico) a través de operaciones sobre directorios que tienen colisiones de hashes, tal y como fue demostrado por operaciones rmdir. A denial of service flaw was found in the way the Linux kernel's XFS file system implementation ordered directory hashes under certain conditions. A local attacker could use this flaw to corrupt the file system by creating directories with colliding hash values, potentially resulting in a system crash. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c88547a8119e3b581318ab65e9b72f27f23e641d http://marc.info/?l=linux-xfs&m=139590613002926&w=2 http://rhn.redhat.com/errata/RHSA-2014-1943.html http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.2 http://www.openwall.com/lists/oss-security/2014/10/01/29 http://www.securityfocus.com/bid/70261 https://bugzilla.redhat.com/show_bug.cgi?id=1148777 https://github.com/torvalds/linux/co • CWE-399: Resource Management Errors •
CVSS: 6.4EPSS: 2%CPEs: 15EXPL: 2CVE-2014-7284
https://notcve.org/view.php?id=CVE-2014-7284
The net_get_random_once implementation in net/core/utils.c in the Linux kernel 3.13.x and 3.14.x before 3.14.5 on certain Intel processors does not perform the intended slow-path operation to initialize random seeds, which makes it easier for remote attackers to spoof or disrupt IP communication by leveraging the predictability of TCP sequence numbers, TCP and UDP port numbers, and IP ID values. La implementación net_get_random_once en net/core/utils.c en el kernel de Linux 3.13.x y 3.14.x anterior a 3.14.5 en ciertos procedesadores Intel no realiza la operación de ruta lenta para inicializar semillas aleatorias, lo que facilita a atacantes remotos suplantar o interrumpir la comunicación IP mediante el aprovechamiento de la previsibilidad de números de secuencias TCP, números de puertos TCP y UDP, y valores de ID IP. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3d4405226d27b3a215e4d03cfa51f536244e5de7 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.5 http://www.openwall.com/lists/oss-security/2014/10/01/19 https://bugzilla.redhat.com/show_bug.cgi?id=1148788 https://github.com/torvalds/linux/commit/3d4405226d27b3a215e4d03cfa51f536244e5de7 https://web.archive.org/web/20141002163852/http://secondlookforensics.com/ngro-linux-kernel-bug • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2014-7975 – Kernel: fs: umount denial of service
https://notcve.org/view.php?id=CVE-2014-7975
The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call. La función do_umount en fs/namespace.c en el kernel de Linux hasta 3.17 no requiere la capacidad CAP_SYS_ADMIN para llamadas do_remount_sb que cambian el sistema de ficheros root a sólo lectura, lo que permite a usuarios locales causar una denegación de servicio (pérdida de la habilidad de escritura) mediante la realización de ciertas llamadas a la liberación de sistemas, la limpieza del indicador / MNT_LOCKED, y la realización de una llamada al sistema umount MNT_FORCE. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5 http://secunia.com/advisories/60174 http://secunia.com/advisories/61145 http://secunia.com/advisories/62633 http://secunia.com/advisories/62634 http://thread.gmane.org/gmane.linux.kernel.stable/109312 http://www.openwall.com/lists/oss-security/2014/10/08/22 http://www.securityfocus.com/bid/70314 http://www.securitytracker.com/id/1031180 http://www.ubuntu.com/usn/US •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 1CVE-2014-7970 – Kernel: fs: VFS denial of service
https://notcve.org/view.php?id=CVE-2014-7970
The pivot_root implementation in fs/namespace.c in the Linux kernel through 3.17 does not properly interact with certain locations of a chroot directory, which allows local users to cause a denial of service (mount-tree loop) via . (dot) values in both arguments to the pivot_root system call. La implementación pivot_root en fs/namespace.c en el kernel de Linux hasta 3.17 no interactúa debidamente con ciertas localizaciones de un directorio chroot, lo que permite a usuarios locales causar una denegación de servicio (bucle de montaje de árbol) a través de valores . (punto) en ambos argumentos en la llamada de sistema pivot_root. • http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html http://secunia.com/advisories/60174 http://secunia.com/advisories/61142 http://www.openwall.com/lists/oss-security/2014/10/08/21 http://www.securityfocus.com/bid/70319 http://www.securitytracker.com/id/1030991 http://www.spinics.net/lists/linux-fsdevel/msg79153.html http://www.ubuntu.com/usn/USN-2419-1 http://www.ubuntu.com/usn/USN-2420-1 http://www.ubuntu.com/usn/USN-2513-1 http: • CWE-400: Uncontrolled Resource Consumption •