CVE-2015-8830 – kernel: AIO write triggers integer overflow in some protocols
https://notcve.org/view.php?id=CVE-2015-8830
Integer overflow in the aio_setup_single_vector function in fs/aio.c in the Linux kernel 4.0 allows local users to cause a denial of service or possibly have unspecified other impact via a large AIO iovec. NOTE: this vulnerability exists because of a CVE-2012-6701 regression. Desbordamiento de entero en la función aio_setup_single_vector en fs/aio.c en el kernel de Linux 4.0 permite a usuarios locales provocar una denegación de servicio o posiblemente tener otro impacto no especificado a través de un iovec AIO grande. NOTA: esta vulnerabilidad existe debido a una regresión de CVE-2012-6701. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c185ce06dca14f5cea192f5a2c981ef50663f2b http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4f4b82694fe48b02f7a881a1797131a6dad1364 http://www.debian.org/security/2016/dsa-3503 http://www.openwall.com/lists/oss-security/2016/03/02/9 http://www.ubuntu.com/usn/USN-2968-1 http://www.ubuntu.com/usn/USN-2968-2 http://www.ubuntu.com/usn/USN-2969-1 http://www.ubuntu.com/usn/USN- • CWE-190: Integer Overflow or Wraparound •
CVE-2016-2544
https://notcve.org/view.php?id=CVE-2016-2544
Race condition in the queue_delete function in sound/core/seq/seq_queue.c in the Linux kernel before 4.4.1 allows local users to cause a denial of service (use-after-free and system crash) by making an ioctl call at a certain time. Condición de carrera en la función queue_delete en sound/core/seq/seq_queue.c en el kernel de Linux en versiones anteriores a 4.4.1 permite a usuarios locales causar una denegación de servicio (uso después de liberación de memoria y caída del sistema) al realizar una llamada ioctl en un momento determinado. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3567eb6af614dac436c4b16a8d426f9faed639b3 http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html http://www.debian.org/security/2016/dsa-3503 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1 http://www.openwall.com/lists/oss-security/2016/ • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVE-2016-2548
https://notcve.org/view.php?id=CVE-2016-2548
sound/core/timer.c in the Linux kernel before 4.4.1 retains certain linked lists after a close or stop action, which allows local users to cause a denial of service (system crash) via a crafted ioctl call, related to the (1) snd_timer_close and (2) _snd_timer_stop functions. sound/core/timer.c en el kernel de Linux en versiones anteriores a 4.4.1 conserva ciertas listas enlazadas después de una acción de cierre o parada, lo que permite a usuarios locales causar una denegación de servicio (caída del sistema) a través de una llamada ioctl manipulada, relacionada con las funciones (1) snd_timer_close y (2) _snd_timer_stop. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0d http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html http://www.debian.org/security/2016/dsa-3503 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1 http://www.openwall.com/lists/oss-security/2016/ • CWE-20: Improper Input Validation •
CVE-2016-2069 – kernel: race condition in the TLB flush logic
https://notcve.org/view.php?id=CVE-2016-2069
Race condition in arch/x86/mm/tlb.c in the Linux kernel before 4.4.1 allows local users to gain privileges by triggering access to a paging structure by a different CPU. Condición de carrera en arch/x86/mm/tlb.c en el kernel de Linux en versiones anteriores a 4.4.1 permite a usuarios locales obtener privilegios desencadenando el acceso a una estructura de paginación por un CPU diferente. A flaw was discovered in the way the Linux kernel dealt with paging structures. When the kernel invalidated a paging structure that was not in use locally, it could, in principle, race against another CPU that is switching to a process that uses the paging structure in question. A local user could use a thread running with a stale cached virtual->physical translation to potentially escalate their privileges if the translation in question were writable and the physical page got reused for something critical (for example, a page table). • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=71b3c126e61177eb693423f2e18a1914205b165e http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html http://rhn.redhat.com/errata/RHSA-2016-2574.html http://rhn.redhat.com/errata/RHSA-2016-258 • CWE-266: Incorrect Privilege Assignment CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVE-2016-1575 – Ubuntu 14.04/15.10 - User Namespace Overlayfs Xattr SetGID Privilege Escalation
https://notcve.org/view.php?id=CVE-2016-1575
The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory. La implementación de overlayfs en el kernel de Linux hasta la versión 4.5.2 no mantiene correctamente datos POSIX ACL xattr, lo que permite a usuarios locales obtener privilegos aprovechando un directorio con permiso de escritura de grupo setgid. • https://www.exploit-db.com/exploits/41762 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360 http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1575.html http://www.halfdog.net/Security/2016/UserNamespaceOverlayfsXattrSetgidPrivilegeEscalation http://www.openwall.com/lists/oss-security/2016/02/24/7 http://www.openwall.com/lists/oss-security/2021/10/18/1 https://launchpad.net/bugs/1534961 • CWE-269: Improper Privilege Management •