Linux kernel (OMAP4) vulnerabilities

2015-01-13T00:00:00
ID USN-2464-1
Type ubuntu
Reporter Ubuntu
Modified 2015-01-13T00:00:00

Description

Andy Lutomirski discovered that the Linux kernel does not properly handle
faults associated with the Stack Segment (SS) register in the x86
architecture. A local attacker could exploit this flaw to gain
administrative privileges. (CVE-2014-9322)

An information leak in the Linux kernel was discovered that could leak the
high 16 bits of the kernel stack address on 32-bit Kernel Virtual Machine
(KVM) paravirt guests. A user in the guest OS could exploit this leak to
obtain information that could potentially be used to aid in attacking the
kernel. (CVE-2014-8134)

A race condition with MMIO and PIO transactions in the KVM (Kernel Virtual
Machine) subsystem of the Linux kernel was discovered. A guest OS user
could exploit this flaw to cause a denial of service (guest OS crash) via a
specially crafted application. (CVE-2014-7842)

The KVM (kernel virtual machine) subsystem of the Linux kernel
miscalculates the number of memory pages during the handling of a mapping
failure. A guest OS user could exploit this to cause a denial of service
(host OS page unpinning) or possibly have unspecified other impact by
leveraging guest OS privileges. (CVE-2014-8369)

Andy Lutomirski discovered that the Linux kernel does not properly handle
faults associated with the Stack Segment (SS) register on the x86
architecture. A local attacker could exploit this flaw to cause a denial of
service (panic). (CVE-2014-9090)