SUSE-SU-2016:1259-1 Security update for spice

Spice was updated to fix three security issues. The following vulnerabilities were fixed: CVE-2015-3247: heap corruption in the spice server bsc944460 CVE-2015-5261: Guest could have accessed host memory using crafted images bsc948976 CVE-2015-5260: Insufficient validation of surfaceid parameter...

DEBIAN-CVE-2015-8553

Xen allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory by not enabling memory and I/O decoding control bits. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-0777...

CVE-2016-0090

Hyper-V in Microsoft Windows 8.1, Windows Server 2012 R2, and Windows 10 allows guest OS users to obtain sensitive information from host OS memory via a crafted application, aka "Hyper-V Information Disclosure Vulnerability."...

CVE-2016-0089

Hyper-V in Microsoft Windows 8.1, Windows Server 2012 Gold and R2, and Windows 10 allows guest OS users to obtain sensitive information from host OS memory via a crafted application, aka "Hyper-V Information Disclosure Vulnerability."...

spice: host memory access from guest using crafted images

A heap-based buffer overflow flaw was found in the way SPICE handled certain guest QXL commands related to surface creation. A user in a guest could use this flaw to read and write arbitrary memory locations on the host...

spice: host memory access from guest using crafted images

A heap-based buffer overflow flaw was found in the way SPICE handled certain guest QXL commands related to surface creation. A user in a guest could use this flaw to read and write arbitrary memory locations on the host...

xen-kernel -- Information leak through XEN_DOMCTL_gettscinfo

The Xen Project reports: The handler for XENDOMCTLgettscinfo failed to initialize a padding field subsequently copied to guest memory. A similar leak existed in XENSYSCTLgetdomaininfolist, which is being addressed here regardless of that operation being declared unsafe for disaggregation by XSA-7...

insufficient permissions checks accessing guest memory on ARM

ISSUE DESCRIPTION When accessing guest memory Xen does not correctly perform permissions checks on the possibly guest provided virtual address: it only checks that the mapping is readable by the guest, even when writing on behalf of the guest. This allows a guest to write to memory which it shoul...

UBUNTU-CVE-2013-1943

The KVM subsystem in the Linux kernel before 3.0 does not check whether kernel addresses are specified during allocation of memory slots for use in a guest's physical address space, which allows local users to gain privileges or obtain sensitive information from kernel memory via a crafted...

kernel: kvm: out-of-bounds access in ioapic indirect register reads

The ioapicreadindirect function in virt/kvm/ioapic.c in the Linux kernel through 3.8.4 does not properly handle a certain combination of invalid IOAPICREGSELECT and IOAPICREGWINDOW operations, which allows guest OS users to obtain sensitive information from host OS memory or cause a denial of...

kernel: kvm: after free issue with the handling of MSR_KVM_SYSTEM_TIME

Use-after-free vulnerability in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 allows guest OS users to cause a denial of service host OS memory corruption or possibly have unspecified other impact via a crafted application that triggers use of a guest physical address GPA in 1 movable or 2...

kernel: kvm: after free issue with the handling of MSR_KVM_SYSTEM_TIME

Use-after-free vulnerability in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 allows guest OS users to cause a denial of service host OS memory corruption or possibly have unspecified other impact via a crafted application that triggers use of a guest physical address GPA in 1 movable or 2...

kernel: kvm: after free issue with the handling of MSR_KVM_SYSTEM_TIME

Use-after-free vulnerability in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 allows guest OS users to cause a denial of service host OS memory corruption or possibly have unspecified other impact via a crafted application that triggers use of a guest physical address GPA in 1 movable or 2...

DEBIAN-CVE-2013-1798

The ioapicreadindirect function in virt/kvm/ioapic.c in the Linux kernel through 3.8.4 does not properly handle a certain combination of invalid IOAPICREGSELECT and IOAPICREGWINDOW operations, which allows guest OS users to obtain sensitive information from host OS memory or cause a denial of...

DEBIAN-CVE-2013-1797

Use-after-free vulnerability in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 allows guest OS users to cause a denial of service host OS memory corruption or possibly have unspecified other impact via a crafted application that triggers use of a guest physical address GPA in 1 movable or 2...

libspice: Insufficient guest provided memory mappings boundaries validations

libspice, as used in QEMU-KVM in Red Hat Enterprise Virtualization Hypervisor aka RHEV-H or rhev-hypervisor before 5.5-2.2 and possibly other products, allows guest OS users to read from or write to arbitrary QEMU memory by modifying the address that is used by Cairo for memory mappings...

libspice: Insufficient guest provided memory mappings boundaries validations

libspice, as used in QEMU-KVM in Red Hat Enterprise Virtualization Hypervisor aka RHEV-H or rhev-hypervisor before 5.5-2.2 and possibly other products, allows guest OS users to read from or write to arbitrary QEMU memory by modifying the address that is used by Cairo for memory mappings...

kernel: KVM: x86: Disallow hypercalls for guest callers in rings > 0

The kvmemulatehypercall function in arch/x86/kvm/x86.c in KVM in the Linux kernel 2.6.25-rc1, and other versions before 2.6.31, when running on x86 systems, does not prevent access to MMU hypercalls from ring 0, which allows local guest OS users to cause a denial of service guest kernel crash and...

qemu/xen/kvm: ioemu: Fix PVFB backend to limit frame buffer size

The backend for XenSource Xen Para Virtualized Frame Buffer PVFB in Xen ioemu does not properly restrict the frame buffer size, which allows attackers to cause a denial of service crash by mapping an arbitrary amount of guest memory...

CVE-2008-1952

The backend for XenSource Xen Para Virtualized Frame Buffer PVFB in Xen ioemu does not properly restrict the frame buffer size, which allows attackers to cause a denial of service crash by mapping an arbitrary amount of guest memory...