CVE-2009-4031 – kernel: KVM: x86 emulator: limit instructions to 15 bytes
https://notcve.org/view.php?id=CVE-2009-4031
The do_insn_fetch function in arch/x86/kvm/emulate.c in the x86 emulator in the KVM subsystem in the Linux kernel before 2.6.32-rc8-next-20091125 tries to interpret instructions that contain too many bytes to be valid, which allows guest OS users to cause a denial of service (increased scheduling latency) on the host OS via unspecified manipulations related to SMP support. La función do_insn_fetch en arch/x86/kvm/emulate.c en el emulador x86 KVM en el subsystem del kernel de Linux anterior a 2.6.32-rc8-next-20091125 intenta interpretar instrucciones que contienen demasiados bytes para ser válidas, lo que permite a un usuario invitado del sistema operativo provocar una denegación de servicio (incremento de la latencia de la planificación) en el sistema operativo anfitrión a través de manipulaciones no especificadas relacionadas con el soporte SMP. • http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git%3Ba=commit%3Bh=e42d9b8141d1f54ff72ad3850bb110c95a5f3b88 http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00006.html http://secunia.com/advisories/37720 http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091125.gz http://www.openwall.com/lists/oss-security/2009/11/25/1 http://www.openwall.com/lists/oss-security/2009/11/25/3 http://www.securityfocus.com/bid/37130 https://bugzilla • CWE-20: Improper Input Validation •
CVE-2009-4021 – kernel: fuse: prevent fuse_put_request on invalid pointer
https://notcve.org/view.php?id=CVE-2009-4021
The fuse_direct_io function in fs/fuse/file.c in the fuse subsystem in the Linux kernel before 2.6.32-rc7 might allow attackers to cause a denial of service (invalid pointer dereference and OOPS) via vectors possibly related to a memory-consumption attack. La funcion fuse_direct_io en fs/fuse/file.c en el subsistema fuse en el kernel de Linux en versiones anteriores a v2.6.32-rc7 podría permitir a atacantes producir una denegación de servicio (desreferencia a puntero no valido y OOPS) a través de vectores que posiblemente estén relacionados con un ataque de agotamiento de memoria. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f60311d5f7670d9539b424e4ed8b5c0872fc9e83 http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html http://secunia.com/advisories/37909 http://secunia.com/advisories/38017 http://support • CWE-399: Resource Management Errors •
CVE-2009-3080 – kernel: gdth: Prevent negative offsets in ioctl
https://notcve.org/view.php?id=CVE-2009-3080
Array index error in the gdth_read_event function in drivers/scsi/gdth.c in the Linux kernel before 2.6.32-rc8 allows local users to cause a denial of service or possibly gain privileges via a negative event index in an IOCTL request. Error de indice de matriz en la función gdth_read_event en drivers/scsi/gdth.c en el kernel de Linux antes de v2.6.32-RC8 permite a usuarios locales provocar una denegación de servicio o posiblemente obtener privilegios a través de un índice de evento negativo en una solicitud IOCTL. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=690e744869f3262855b83b4fb59199cf142765b0 http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html http://secunia. • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-129: Improper Validation of Array Index •
CVE-2009-4005 – kernel: isdn: hfc_usb: fix read buffer overflow
https://notcve.org/view.php?id=CVE-2009-4005
The collect_rx_frame function in drivers/isdn/hisax/hfc_usb.c in the Linux kernel before 2.6.32-rc7 allows attackers to have an unspecified impact via a crafted HDLC packet that arrives over ISDN and triggers a buffer under-read. La función collect_rx_frame en drivers/isdn/hisax/hfc_usb.c en el kernel Linux anteriores a v2.6.32-rc7 permite a los atacantes tener un impacto no especificado a través de paquetes manipulados HDLC que llegan sobre ISD y lanzan una lectura de búfer por debajo del límite inferior. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=286e633ef0ff5bb63c07b4516665da8004966fec http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html http://secunia. • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVE-2009-4004
https://notcve.org/view.php?id=CVE-2009-4004
Buffer overflow in the kvm_vcpu_ioctl_x86_setup_mce function in arch/x86/kvm/x86.c in the KVM subsystem in the Linux kernel before 2.6.32-rc7 allows local users to cause a denial of service (memory corruption) or possibly gain privileges via a KVM_X86_SETUP_MCE IOCTL request that specifies a large number of Machine Check Exception (MCE) banks. Desbordamiento de búfer en la función kvm_vcpu_ioctl_x86_setup_mce en arch/x86/kvm/x86.c en el subsistema KVM en el kernel de Linux anteriores a v2.6.32-rc7 permite a los usuarios locales causar una denegación de servicio (corrupción de memoria) o posiblemente obtener privilegios a través de una petición KVM_X86_SETUP_MCE IOCTL que especifica un elevado número de bancos de Machine Check Exception (MCE). • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a9e38c3e01ad242fe2a625354cf065c34b01e3aa http://secunia.com/advisories/37357 http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc7 http://www.securityfocus.com/bid/37035 http://www.vupen.com/english/advisories/2009/3267 https://exchange.xforce.ibmcloud.com/vulnerabilities/54302 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •