CVE-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 •
CVE-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 •
CVE-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 •
CVE-2014-6418
https://notcve.org/view.php?id=CVE-2014-6418
net/ceph/auth_x.c in Ceph, as used in the Linux kernel before 3.16.3, does not properly validate auth replies, which allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via crafted data from the IP address of a Ceph Monitor. net/ceph/auth_x.c en Ceph, utilizado en el kernel de Linux anterior a 3.16.3, no valida debidamente las respuestas de autor válidas, lo que permite a atacantes remotos causar una denegación de servicio (caída del sistema) o posiblemente tener otro impacto no especificado a través de datos manipulados de la dirección IP de un monitor Ceph. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c27a3e4d667fdcad3db7b104f75659478e0c68d8 http://tracker.ceph.com/issues/8979 http://tracker.ceph.com/issues/9561 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3 http://www.openwall.com/lists/oss-security/2014/09/15/7 http://www.ubuntu.com/usn/USN-2376-1 http://www.ubuntu.com/usn/USN-2377-1 http://www.ubuntu.com/usn/USN-2378-1 http://www.ubuntu.com/usn/USN • CWE-399: Resource Management Errors •
CVE-2014-3186 – Kernel: HID: memory corruption via OOB write
https://notcve.org/view.php?id=CVE-2014-3186
Buffer overflow in the picolcd_raw_event function in devices/hid/hid-picolcd_core.c in the PicoLCD HID device driver in the Linux kernel through 3.16.3, as used in Android on Nexus 7 devices, allows physically proximate attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a crafted device that sends a large report. Desbordamiento de buffer en la función picolcd_raw_event en devices/hid/hid-picolcd_core.c en el controlador de dispositivos PicoLCD HID en el kernel de Linux hasta 3.16.3, utilizado en Android en los dispositivos Nexus 7, permite a atacantes físicamente próximos causar una denegación de servicio (caída del sistema) o posiblemente ejecutar código arbitrario a través de un dispositivo manipulado que envía un informe grande. A buffer overflow flaw was found in the way the Minibox PicoLCD driver handled Human Interface Device (HID) reports with an invalid size. An attacker with physical access to the system could use this flaw to crash the system or, potentially, escalate their privileges on the system. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=844817e47eef14141cf59b8d5ac08dd11c0a9189 http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html http://www.openwall.com/lists/oss-security/2014/09/11/22 http://www.securityfocus.com/bid/69763 http://www.ubuntu.com/usn/USN-2376-1 http://www.ubuntu.com/usn/USN-2377-1 http://www.ubuntu.com/usn/USN-2378- • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •