kernel: kvm: reporting emulation failures to userspace

It was found that reporting emulation failures to user space could lead to either a local CVE-2014-7842 or a L2-L1 CVE-2010-5313 denial of service. In the case of a local denial of service, an attacker must have access to the MMIO area or be able to access an I/O port. Please note that on certain...

qemu: incorrect banked access bounds checking in vga module

An out-of-bounds read/write access flaw was found in the way QEMU's VGA emulation with VESA BIOS Extensions VBE support performed read/write operations using I/O port methods. A privileged guest user could use this flaw to execute arbitrary code on the host with the privileges of the host's QEMU...

qemu: incorrect banked access bounds checking in vga module

An out-of-bounds read/write access flaw was found in the way QEMU's VGA emulation with VESA BIOS Extensions VBE support performed read/write operations using I/O port methods. A privileged guest user could use this flaw to execute arbitrary code on the host with the privileges of the host's QEMU...

Xen has an unspecified vulnerability

Xen is an open source virtual machine monitor product developed at the University of Cambridge in the United Kingdom. A security vulnerability exists in Xen that can be exploited by an attacker to obtain sensitive information from uninitialized locations in the host OS kernel memory by not enabli...

UBUNTU-CVE-2016-2549

sound/core/hrtimer.c in the Linux kernel before 4.4.1 does not prevent recursive callback access, which allows local users to cause a denial of service deadlock via a crafted ioctl call...

Qemu: ide: ahci use-after-free vulnerability in aio port commands

A use-after-free flaw was found in the way QEMU's IDE AHCI emulator processed certain AHCI Native Command Queuing NCQ AIO commands. A privileged guest user could use this flaw to crash the QEMU process instance or, potentially, execute arbitrary code on the host with privileges of the QEMU proces...

[SECURITY] Fedora 22 Update: libxml2-2.9.3-1.fc22

This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse time or later once the document has been modified. The output can be a simple SAX strea...

kernel: kvm: reporting emulation failures to userspace

It was found that reporting emulation failures to user space could lead to either a local CVE-2014-7842 or a L2-L1 CVE-2010-5313 denial of service. In the case of a local denial of service, an attacker must have access to the MMIO area or be able to access an I/O port. Please note that on certain...

IBM AIX and VIOS netstat elevation of privilege vulnerability

IBM AIX is a UNIX operating system; IBM VIOS is a virtual IO server. A security vulnerability exists in netstat for IBM AIX and VIOS when using Fibre Channel adapters. Allowing a local attacker could exploit the vulnerability to elevate privileges...

Multiple Dell devices vulnerable

Dell Latitude, etc. are the products of the United States Dell Dell company.Dell Latitude and OptiPlex are notebook product models; Precision Mobile Workstation is a precision mobile workstation; Precision Workstation CS is a set of mobile workstation Client; BIOS Basic Input-Output System is a s...

Qemu Memory Misreference Vulnerability

QEMU is an open source emulator software. A memory misreference vulnerability exists when Qemu, which supports IDE Emulation PCI PIIX3/4, writes data to a client I/O port, which can be exploited by a client user to cause a Qemu instance to crash, resulting in a denial of service...

qemu: ide: atapi: heap overflow during I/O buffer memory access

A heap buffer overflow flaw was found in the way QEMU's IDE subsystem handled I/O buffer access while processing certain ATAPI commands. A privileged guest user in a guest with the CDROM drive enabled could potentially use this flaw to execute arbitrary code on the host with the privileges of the...

qemu: ide: atapi: heap overflow during I/O buffer memory access

A heap buffer overflow flaw was found in the way QEMU's IDE subsystem handled I/O buffer access while processing certain ATAPI commands. A privileged guest user in a guest with the CDROM drive enabled could potentially use this flaw to execute arbitrary code on the host with the privileges of the...

kernel: pipe: iovec overrun leading to memory corruption

It was found that the Linux kernel's implementation of vectored pipe read and write functionality did not take into account the I/O vectors that were already processed when retrying after a failed atomic access operation, potentially resulting in memory corruption due to an I/O vector array...

kernel: pipe: iovec overrun leading to memory corruption

It was found that the Linux kernel's implementation of vectored pipe read and write functionality did not take into account the I/O vectors that were already processed when retrying after a failed atomic access operation, potentially resulting in memory corruption due to an I/O vector array...

kernel: pipe: iovec overrun leading to memory corruption

It was found that the Linux kernel's implementation of vectored pipe read and write functionality did not take into account the I/O vectors that were already processed when retrying after a failed atomic access operation, potentially resulting in memory corruption due to an I/O vector array...

[SECURITY] Fedora 20 Update: libxml2-2.9.1-4.fc20

This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse time or later once the document has been modified. The output can be a simple SAX strea...

DEBIAN-CVE-2015-2756

QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service non-maskable interrupt and host crash by disabling the 1 memory or 2 I/O decoding for a PCI Express device and then accessing...

Linux kernel denial of service vulnerability (CNVD-2015-01817)

The Linux kernel is the kernel used by the operating system Linux, released by the Linux Foundation in the United States. A security vulnerability exists in the file system implementation of Linux kernel 3.12.17 and prior versions, which originates from a program that uses an improper locking...

kernel: soft lockup on aio

It was found that due to excessive fileslock locking, a soft lockup could be triggered in the Linux kernel when performing asynchronous I/O operations. A local, unprivileged user could use this flaw to crash the system...