CVE-2012-5513

The XENMEMexchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service crash or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range...

CVE-2012-5514

The guestphysmapmarkpopulateondemand function in Xen 4.2 and earlier does not properly unlock the subject GFNs when checking if they are in use, which allows local guest HVM administrators to cause a denial of service hang via unspecified vectors...

CVE-2012-5513

The XENMEMexchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service crash or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range...

CVE-2012-5514

The guestphysmapmarkpopulateondemand function in Xen 4.2 and earlier does not properly unlock the subject GFNs when checking if they are in use, which allows local guest HVM administrators to cause a denial of service hang via unspecified vectors...

CVE-2012-5515

Summary of CVE-2012-5515 : Xen 4.2 and earlier contains a flaw in the XENMEM_decrease_reservation, XENMEM_populate_physmap, and XENMEM_exchange hypercalls where an crafted extent_order value can be exploited by a local guest administrator to cause a denial of service (long loop and hang). The ini...

CVE-2012-5513

CVE-2012-5513 affects Xen 4.2 and earlier where memory_exchange() did not properly validate guest memory pointers. The bug arises from using guest_handle_okay() to validate exchange extents, which checks only the 0-offset safety and not subranges, enabling a PV guest with hypervisor privileges to...

several hypercalls do not validate input GFNs

ISSUE DESCRIPTION The function getpagefromgfn does not validate its input GFN. An invalid GFN passed to a hypercall which uses this function will cause the hypervisor to read off the end of the frame table and potentially crash. IMPACT A malicious guest administrator of a PV guest can cause Xen t...

CVE-2012-4221

Integer overflow in diagcharcore.c in the Qualcomm Innovation Center QuIC Diagnostics aka DIAG kernel-mode driver for Android 2.3 through 4.2 allows attackers to execute arbitrary code or cause a denial of service via an application that uses crafted arguments in a local diagcharioctl call...

CVE-2012-4222

drivers/gpu/msm/kgsl.c in the Qualcomm Innovation Center QuIC Graphics KGSL kernel-mode driver for Android 2.3 through 4.2 allows attackers to cause a denial of service NULL pointer dereference via an application that uses crafted arguments in a local kgslioctl call...

Null pointer dereference

diagcharcore.c in the Qualcomm Innovation Center QuIC Diagnostics aka DIAG kernel-mode driver for Android 2.3 through 4.2 allows attackers to execute arbitrary code or cause a denial of service incorrect pointer dereference via an application that uses crafted arguments in a local diagcharioctl...

CVE-2012-4220

diagcharcore.c in the Qualcomm Innovation Center QuIC Diagnostics aka DIAG kernel-mode driver for Android 2.3 through 4.2 allows attackers to execute arbitrary code or cause a denial of service incorrect pointer dereference via an application that uses crafted arguments in a local diagcharioctl...

Null pointer dereference

drivers/gpu/msm/kgsl.c in the Qualcomm Innovation Center QuIC Graphics KGSL kernel-mode driver for Android 2.3 through 4.2 allows attackers to cause a denial of service NULL pointer dereference via an application that uses crafted arguments in a local kgslioctl call...

CVE-2012-4221

CVE-2012-4221 involves an integer overflow in the Qualcomm Innovation Center (QuIC) Diagnostics (DIAG) kernel-mode driver for Android 2.3–4.2, specifically in diagchar_core.c. An attacker could exploit crafted arguments via a local diagchar_ioctl call to achieve arbitrary code execution or cause ...

CVE-2012-4220

diagcharcore.c in the Qualcomm Innovation Center QuIC Diagnostics aka DIAG kernel-mode driver for Android 2.3 through 4.2 allows attackers to execute arbitrary code or cause a denial of service incorrect pointer dereference via an application that uses crafted arguments in a local diagcharioctl...

CVE-2012-4538

The HVMOPpagetabledying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow pagetables, which allows a local HVM guest OS to cause a denial of service hypervisor crash via unspecified vectors...

CVE-2012-4538

The HVMOPpagetabledying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow pagetables, which allows a local HVM guest OS to cause a denial of service hypervisor crash via unspecified vectors...

CVE-2012-6034

The 1 tmemcsavegetnextpage and 2 tmemcsavegetnextinv functions and the 3 TMEMCSAVEGETPOOLUUID sub-operation in the Transcendent Memory TMEM in Xen 4.0, 4.1, and 4.2 "do not check incoming guest output buffer pointers," which allows local guest OS users to cause a denial of service memory corrupti...

CVE-2012-6030

The dotmemop function in the Transcendent Memory TMEM in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service host crash and possibly have other unspecified impacts via unspecified vectors related to "broken locking checks" in an "error path." NOTE: this issue was...

CVE-2012-6033

The dotmemcontrol function in the Transcendent Memory TMEM in Xen 4.0, 4.1, and 4.2 does not properly check privileges, which allows local guest OS users to access control stack operations via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too...

CVE-2012-3516

The GNTTABOPswapgrantref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service host crash and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hyperviso...