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CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0

The ptrace_start function in kernel/ptrace.c in the Linux kernel 2.6.18 does not properly handle simultaneous execution of the do_coredump function, which allows local users to cause a denial of service (deadlock) via vectors involving the ptrace system call and a coredumping thread. La función ptrace_start de kernel/ptrace.c en el kernel de Linux v2.6.18, no maneja adecuadamente la ejecución simultánea de la función do_coredump, esto permite a usuarios locales provocar una denegación de servicio -bloqueo mutuo (deadlock)- a través de vectores que incluyen la llamada al sistema ptrace y un hilo coredumping. • http://marc.info/?l=oss-security&m=124654277229434&w=2 http://osvdb.org/55679 http://secunia.com/advisories/36131 http://secunia.com/advisories/37471 http://www.redhat.com/support/errata/RHSA-2009-1193.html http://www.securityfocus.com/archive/1/507985/100/0/threaded http://www.securityfocus.com/bid/35559 http://www.vmware.com/security/advisories/VMSA-2009-0016.html http://www.vupen.com/english/advisories/2009/3316 https://bugzilla.redhat.com/attachment.cgi?id=346615 • CWE-667: Improper Locking •

CVSS: 4.9EPSS: 0%CPEs: 7EXPL: 0

The kvm_arch_vcpu_ioctl_set_sregs function in the KVM in Linux kernel 2.6 before 2.6.30, when running on x86 systems, does not validate the page table root in a KVM_SET_SREGS call, which allows local users to cause a denial of service (crash or hang) via a crafted cr3 value, which triggers a NULL pointer dereference in the gfn_to_rmap function. La funciónkvm_arch_vcpu_ioctl_set_sregs en el KVM en el Kernel Linux v2.6 anterior a v2.6.30, ejecutado sobre plataformas x86, no valida la "page table root" (raíz de tabla de páginas) en una llamada KVM_SET_SREGS, lo que permite a usuarios locales provocar una denegación de servicio (cuelgue o caída) a través de un valor cr3 manipulado, lo que lanza un deferencia a puntero NULL en la función gfn_to_rmap. • http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git%3Ba=blob%3Bf=queue-2.6.30/kvm-x86-check-for-cr3-validity-in-ioctl_set_sregs.patch%3Bh=b48a47dad2cf76358b327368f80c0805e6370c68%3Bhb=e7c45b24f298b5d9efd7d401150f64a1b51aaac4 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=59839dfff5eabca01cc4e20b45797a60a80af8cb http://secunia.com/advisories/35675 http://secunia.com/advisories/36045 http://secunia.com/advisories/36054 http://sourceforge.net/tracker/?func=detail&atid& • CWE-476: NULL Pointer Dereference •

CVSS: 7.8EPSS: 10%CPEs: 412EXPL: 1

Buffer overflow in the RTL8169 NIC driver (drivers/net/r8169.c) in the Linux kernel before 2.6.30 allows remote attackers to cause a denial of service (kernel memory corruption and crash) via a long packet. Desbordamiento de memoria en el driver RTL8169 NIC (drivers/net/r8169.c) en el kernel de Linux anteriores a v2.6.30 permite a atacantes remotos producir una denegación de servicio (consumo de memoria del kernel y caída) a través de un paquete largo. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=fdd7b4c3302c93f6833e338903ea77245eb510b4 http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2010-07/msg00006.html http://lkml.org/lkml/2009/6/8/194 http://marc.info/?l=linux-netdev&m=123462461713724&w=2 http://secunia.com/advisories/35265 http://secunia.com/advisories/35566 http://secunia.com/advisories/35847 http://secunia& • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 4.7EPSS: 0%CPEs: 15EXPL: 5

The inode double locking code in fs/ocfs2/file.c in the Linux kernel 2.6.30 before 2.6.30-rc3, 2.6.27 before 2.6.27.24, 2.6.29 before 2.6.29.4, and possibly other versions down to 2.6.19 allows local users to cause a denial of service (prevention of file creation and removal) via a series of splice system calls that trigger a deadlock between the generic_file_splice_write, splice_from_pipe, and ocfs2_file_splice_write functions. El código de doble bloqueo del inodo de fs/ocfs2/file.c del kernel de Linux v2.6.30 anterior a v2.6.30-rc3, v2.6.27 anterior a v2.6.27.24, v2.6.29 anterior a v2.6.29.4 y puede que otras versiones anteriores a v2.6.19; permite a usuarios locales provocar una denegación de servicio (prevención de creación y borrado de ficheros) a través de una serie de llamadas al sistema anidadas que provocan un bloqueo mutuo -deadlock- entre las funciones generic_file_splice_write, splice_from_pipe y ocfs2_file_splice_write. • https://www.exploit-db.com/exploits/33015 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=7bfac9ecf0585962fe13584f5cf526d8c8e76f17 http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00004.html http://secunia.com/advisories/35390 http://secunia.com/advisories/35394 http://secunia.com/advisories/35656 http&# • CWE-667: Improper Locking •

CVSS: 4.9EPSS: 0%CPEs: 291EXPL: 1

The pci_register_iommu_region function in arch/sparc/kernel/pci_common.c in the Linux kernel before 2.6.29 on the sparc64 platform allows local users to cause a denial of service (system crash) by reading the /proc/iomem file, related to uninitialized pointers and the request_resource function. La función pci_register_iommu_region de arch/sparc/kernel/pci_common.c del kernel de Linux anterior a v2.6.29 en la plataforma sparc64, permite a usuarios locales provocar una denegación de servicio (caída del sistema), al leer el fichero /proc/iomem. Está relacionado con punteros no iniciados y la función request_resource. • https://www.exploit-db.com/exploits/33043 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=192d7a4667c6d11d1a174ec4cad9a3c5d5f9043c http://osvdb.org/54908 http://secunia.com/advisories/35656 http://secunia.com/advisories/36051 http://www.debian.org/security/2009/dsa-1844 http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29 http://www.openwall.com/lists/oss-security/2009/06/03/3 http://www.securityfocus.com/bid/35415 http:/ • CWE-20: Improper Input Validation •