Oracle Linux 5 : ELSA-2012-1540-1: / kernel (ELSA-2012-15401)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-15401 advisory. - The rdsibxmit function in net/rds/ibsend.c in the Reliable Datagram Sockets RDS protocol implementation in the Linux kernel 3.7.4 and earlier allows...

Design/Logic Flaw

The p2mpodemergencysweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service CPU consumption and possibly reboot via crafted memory contents that triggers a "time-consuming linear scan,"...

CVE-2015-7972

The 1 libxlsetmemorytarget function in tools/libxl/libxl.c and 2 libxlbuildpost function in tools/libxl/libxldom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand PoD system, which allows local HVM guest users to cause a denial of service...

CVE-2015-0777

drivers/xen/usbback/usbback.c in linux-2.6.18-xen-3.4.0 aka the Xen 3.4.x support patches for the Linux kernel 2.6.18, as used in the Linux kernel 2.6.x and 3.x in SUSE Linux distributions, allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory...

x86: Uncontrolled creation of large page mappings by PV guests

ISSUE DESCRIPTION The code to validate level 2 page table entries is bypassed when certain conditions are satisfied. This means that a PV guest can create writeable mappings using super page mappings. Such writeable mappings can violate Xen intended invariants for pages which Xen is supposed to...

x86: Long latency populate-on-demand operation is not preemptible

ISSUE DESCRIPTION When running an HVM domain in Populate-on-Demand mode, Xen would sometimes search the domain for memory to reclaim, in response to demands for population of other pages in the same domain. This search runs without preemption. The guest can, by suitable arrangement of its memory...

Design/Logic Flaw

drivers/xen/usbback/usbback.c in linux-2.6.18-xen-3.4.0 aka the Xen 3.4.x support patches for the Linux kernel 2.6.18, as used in the Linux kernel 2.6.x and 3.x in SUSE Linux distributions, allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory...

CVE-2015-0777

drivers/xen/usbback/usbback.c in linux-2.6.18-xen-3.4.0 aka the Xen 3.4.x support patches for the Linux kernel 2.6.18, as used in the Linux kernel 2.6.x and 3.x in SUSE Linux distributions, allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory...

CVE-2015-0777

drivers/xen/usbback/usbback.c in linux-2.6.18-xen-3.4.0 aka the Xen 3.4.x support patches for the Linux kernel 2.6.18, as used in the Linux kernel 2.6.x and 3.x in SUSE Linux distributions, allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory...

CVE-2015-0777

CVE-2015-0777 affects Linux Xen patches (linux-2.6.18-xen-3.4.0) used on Linux kernels 2.6.x/3.x. The vulnerability lets a guest OS read from uninitialized host kernel memory via unspecified vectors. Connected advisories note an incomplete fix for this CVE; remediation requires applying updated k...

CVE-2015-0777

drivers/xen/usbback/usbback.c in linux-2.6.18-xen-3.4.0 aka the Xen 3.4.x support patches for the Linux kernel 2.6.18, as used in the Linux kernel 2.6.x and 3.x in SUSE Linux distributions, allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory...

Design/Logic Flaw

The XENDOMCTLgetmemlist hypercall in Xen 3.4.x through 4.3.x possibly 4.3.1 does not always obtain the pagealloclock and mmrwlock in the same order, which allows local guest administrators to cause a denial of service host deadlock...

CVE-2012-6333

Multiple HVM control operations in Xen 3.4 through 4.2 allow local HVM guest OS administrators to cause a denial of service physical CPU consumption via a large input...

CVE-2012-5511

Stack-based buffer overflow in the dirty video RAM tracking functionality in Xen 3.4 through 4.1 allows local HVM guest OS administrators to cause a denial of service crash via a large bitmap image...

Design/Logic Flaw

Xen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction, does not properly clear a flag for exception injection when injecting a General Protection Fault, which allows local PV guest OS users to cause a denial of service guest crash by later...

Design/Logic Flaw

arch/ia64/xen/faults.c in Xen 3.4 and 4.0 in Linux kernel 2.6.18, and possibly other kernel versions, when running on IA-64 architectures, allows local users to cause a denial of service and "turn on BE by modifying the user mask of the PSR," as demonstrated via exploitation of CVE-2006-0742...