CVSS: 4.9EPSS: 0%CPEs: 1EXPL: 0CVE-2014-7843
https://notcve.org/view.php?id=CVE-2014-7843
The __clear_user function in arch/arm64/lib/clear_user.S in the Linux kernel before 3.17.4 on the ARM64 platform allows local users to cause a denial of service (system crash) by reading one byte beyond a /dev/zero page boundary. La función __clear_user en arch/arm64/lib/clear_user.S en el kernel de Linux anterior a 3.17.4 en la plataforma ARM64 permite a usuarios locales causar una denegación de servicio (caída del sistema) mediante la lectura de un byte más allá del límite de página /dev/zero. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=97fc15436b36ee3956efad83e22a557991f7d19d http://secunia.com/advisories/62305 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4 http://www.openwall.com/lists/oss-security/2014/11/13/5 http://www.securityfocus.com/bid/71082 https://bugzilla.redhat.com/show_bug.cgi?id=1163744 https://github.com/torvalds/linux/commit/97fc15436b36ee3956efad83e22a557991f7d19d • CWE-17: DEPRECATED: Code •
CVSS: 4.9EPSS: 0%CPEs: 1EXPL: 2CVE-2014-8481
https://notcve.org/view.php?id=CVE-2014-8481
The instruction decoder in arch/x86/kvm/emulate.c in the KVM subsystem in the Linux kernel before 3.18-rc2 does not properly handle invalid instructions, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a crafted application that triggers (1) an improperly fetched instruction or (2) an instruction that occupies too many bytes. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-8480. El decodificador de instrucciones en arch/x86/kvm/emulate.c en el subsistema KVM en el kernel de Linux anterior a 3.18-rc2 no maneja debidamente las instrucciones inválidas, lo que permite a usuarios del sistema operativo invitado causar una denegación de servicio (referencia a puntero nulo y caída del sistema operativo anfitrión) a través de una aplicación manipulada que provoca (1) una instrucción traída indebidamente o (2) una instrucción que ocupa demasiados bytes. NOTA: esta vulnerabilidad existe debido a una solución incompleta para CVE-2014-8480. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a430c9166312e1aa3d80bce32374233bdbfeba32 http://secunia.com/advisories/62042 http://thread.gmane.org/gmane.comp.emulators.kvm.devel/128427 http://www.openwall.com/lists/oss-security/2014/10/23/7 https://bugzilla.redhat.com/show_bug.cgi?id=1156615 https://github.com/torvalds/linux/commit/a430c9166312e1aa3d80bce32374233bdbfeba32 • CWE-399: Resource Management Errors •
CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 1CVE-2014-7826 – kernel: insufficient syscall number validation in perf and ftrace subsystems
https://notcve.org/view.php?id=CVE-2014-7826
kernel/trace/trace_syscalls.c in the Linux kernel through 3.17.2 does not properly handle private syscall numbers during use of the ftrace subsystem, which allows local users to gain privileges or cause a denial of service (invalid pointer dereference) via a crafted application. kernel/trace/trace_syscalls.c en el kernel de Linux hasta 3.17.2 no maneja debidamente los números privados de las llamadas al sistema durante el uso del subsistema ftrace, lo que permite a usuarios locales ganar privilegios o causar una denegación de servicio (referencia a puntero inválido) a través de una aplicación manipulada. An out-of-bounds memory access flaw, CVE-2014-7825, was found in the syscall tracing functionality of the Linux kernel's perf subsystem. A local, unprivileged user could use this flaw to crash the system. Additionally, an out-of-bounds memory access flaw, CVE-2014-7826, was found in the syscall tracing functionality of the Linux kernel's ftrace subsystem. On a system with ftrace syscall tracing enabled, a local, unprivileged user could use this flaw to crash the system, or escalate their privileges. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=086ba77a6db00ed858ff07451bedee197df868c9 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-2014-1943.html http://rhn.redhat.com/errata/RHSA-2015-0290.html http://rhn.redhat.com/errata/RHSA-2015-0864.html http://www.openwall.com/lists/oss-security/2014/11/06/11 http:// • CWE-476: NULL Pointer Dereference •
CVSS: 4.9EPSS: 0%CPEs: 1EXPL: 2CVE-2014-8480
https://notcve.org/view.php?id=CVE-2014-8480
The instruction decoder in arch/x86/kvm/emulate.c in the KVM subsystem in the Linux kernel before 3.18-rc2 lacks intended decoder-table flags for certain RIP-relative instructions, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a crafted application. El decodificador de instrucciones en arch/x86/kvm/emulate.c en el subsistema KVM en el kernel de Linux anterior a 3.18-rc2 le falta indicadores de las tablas del decodificador para ciertas instrucciones relacionados con RIP, lo que permite a usuarios del sistema operativo invitado causar una denegación de servicio (referencia a puntero nulo y caída del sistema operativo anfitrión) a través de una aplicación manipulada. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3f6f1480d86bf9fc16c160d803ab1d006e3058d5 http://thread.gmane.org/gmane.comp.emulators.kvm.devel/128427 http://www.openwall.com/lists/oss-security/2014/10/23/7 http://www.securityfocus.com/bid/70710 https://bugzilla.redhat.com/show_bug.cgi?id=1156615 https://github.com/torvalds/linux/commit/3f6f1480d86bf9fc16c160d803ab1d006e3058d5 • CWE-399: Resource Management Errors •
CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 1CVE-2014-7825 – kernel: insufficient syscall number validation in perf and ftrace subsystems
https://notcve.org/view.php?id=CVE-2014-7825
kernel/trace/trace_syscalls.c in the Linux kernel through 3.17.2 does not properly handle private syscall numbers during use of the perf subsystem, which allows local users to cause a denial of service (out-of-bounds read and OOPS) or bypass the ASLR protection mechanism via a crafted application. kernel/trace/trace_syscalls.c en el kernel de Linux hasta 3.17.2 no maneja debidamente los números privados de llamadas al sistema durante el uso del subsistema perf, lo que permite a usuarios locales causar una denegación de servicio (lectura fuera de rango y OOPS) o evadir el mecanismo de protección ASLR a través de una aplicación manipulada. An out-of-bounds memory access flaw, CVE-2014-7825, was found in the syscall tracing functionality of the Linux kernel's perf subsystem. A local, unprivileged user could use this flaw to crash the system. Additionally, an out-of-bounds memory access flaw, CVE-2014-7826, was found in the syscall tracing functionality of the Linux kernel's ftrace subsystem. On a system with ftrace syscall tracing enabled, a local, unprivileged user could use this flaw to crash the system, or escalate their privileges. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=086ba77a6db00ed858ff07451bedee197df868c9 http://rhn.redhat.com/errata/RHSA-2014-1943.html http://rhn.redhat.com/errata/RHSA-2015-0290.html http://rhn.redhat.com/errata/RHSA-2015-0864.html http://www.openwall.com/lists/oss-security/2014/11/06/11 http://www.securityfocus.com/bid/70972 https://bugzilla.redhat.com/show_bug.cgi?id=1161565 https://exchange.xforce.ibmcloud.com/vulnerabilities/98557 https:& • CWE-125: Out-of-bounds Read •