CVE-2013-4369

xen: possible null dereference when parsing vif ratelimiting info (XSA-68)

The xlu_vif_parse_rate function in the libxlu library in Xen 4.2.x and 4.3.x allows local users to cause a denial of service (NULL pointer dereference) by using the "@" character as the VIF rate configuration.

CVSS 2.0 · 1.9 Low EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-4368

xen: information leak through outs instruction emulation (XSA-67)

The outs instruction emulation in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS: segment override, uses an uninitialized variable as a segment base, which allows local 64-bit PV guests to obtain sensitive information (hypervisor stack content) via unspecified vectors related to stale data in a segment register.

CVSS 2.0 · 1.9 Low EPSS < 1% KEV · Not listed

Vendors

Redhat Xen

Products

Enterprise Linux Xen

CVE-2013-4361

Kernel: Xen: Xsa-66: information leak through fbld instruction emulation

The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the correct variable for the source effective address, which allows local HVM guests to obtain hypervisor stack information by reading the values used by the instruction.

CVSS 2.0 · 2.1 Low EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-4356

Kernel: Xen: Xsa-64: memory leak by 64bit PV guests under live migration

Xen 4.3.x writes hypervisor mappings to certain shadow pagetables when live migration is performed on hosts with more than 5TB of RAM, which allows local 64-bit PV guests to read or write to invalid memory and cause a denial of service (crash).

CVSS 2.0 · 5.4 Medium EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-4355

Kernel: Xen: Xsa-63: information leak via I/O instruction emulation

Xen 4.3.x and earlier does not properly handle certain errors, which allows local HVM guests to obtain hypervisor stack memory via a (1) port or (2) memory mapped I/O write or (3) other unspecified operations related to addresses without associated memory.

CVSS 2.0 · 1.5 Low EPSS < 1% KEV · Not listed

Vendors

Redhat Xen

Products

Enterprise Linux Xen

CVE-2013-4329

xen: libxl partially sets up HVM passthrough even with disabled iommu

The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction.

CVSS 2.0 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-3495

hw: virt: Intel VT-d Interrupt Remapping engines can be evaded by native NMI interrupts

The Intel VT-d Interrupt Remapping engine in Xen 3.3.x through 4.3.x allows local guests to cause a denial of service (kernel panic) via a malformed Message Signaled Interrupt (MSI) from a PCI device that is bus mastering capable that triggers a System Error Reporting (SERR) Non-Maskable Interrupt (NMI).

CVSS 2.0 · 4.7 Medium EPSS < 1% KEV · Not listed

Vendors

Opensuse Xen

Products

Opensuse Xen

CVE-2013-2212

kernel: xen: Excessive time to disable caching with HVM guests with PCI passthrough

The vmx_set_uc_mode function in Xen 3.3 through 4.3, when disabling caches, allows local HVM guests with access to memory mapped I/O regions to cause a denial of service (CPU consumption and possibly hypervisor or guest kernel panic) via a crafted GFN range.

CVSS 2.0 · 5.7 Medium EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-2211

xen: libxl allows guest write access to sensitive console related xenstore keys

The libxenlight (libxl) toolstack library in Xen 4.0.x, 4.1.x, and 4.2.x uses weak permissions for xenstore keys for paravirtualised and emulated serial console devices, which allows local guest administrators to modify the xenstore value via unspecified vectors.

CVSS 2.0 · 7.4 High EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-2196

xen: Multiple vulnerabilities in libelf PV kernel handling

Multiple unspecified vulnerabilities in the Elf parser (libelf) in Xen 4.2.x and earlier allow local guest administrators with certain permissions to have an unspecified impact via a crafted kernel, related to "other problems" that are not CVE-2013-2194 or CVE-2013-2195.

CVSS 2.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-2195

xen: Multiple vulnerabilities in libelf PV kernel handling

The Elf parser (libelf) in Xen 4.2.x and earlier allow local guest administrators with certain permissions to have an unspecified impact via a crafted kernel, related to "pointer dereferences" involving unexpected calculations.

CVSS 2.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-2194

xen: Multiple vulnerabilities in libelf PV kernel handling

Multiple integer overflows in the Elf parser (libelf) in Xen 4.2.x and earlier allow local guest administrators with certain permissions to have an unspecified impact via a crafted kernel.

CVSS 2.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-2078

kernel: xen: Hypervisor crash due to missing exception recovery on XSETBV

Xen 4.0.2 through 4.0.4, 4.1.x, and 4.2.x allows local PV guest users to cause a denial of service (hypervisor crash) via certain bit combinations to the XSETBV instruction.

CVSS 2.0 · 4.7 Medium EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-2077

kernel: xen: Hypervisor crash due to missing exception recovery on XRSTOR

Xen 4.0.x, 4.1.x, and 4.2.x does not properly restrict the contents of a XRSTOR, which allows local PV guest users to cause a denial of service (unhandled exception and hypervisor crash) via unspecified vectors.

CVSS 2.0 · 5.2 Medium EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-2076

kernel: xen: Information leak on XSAVE/XRSTOR capable AMD CPUs

Xen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one domain to determine portions of the state of floating point instructions of other domains, which can be leveraged to obtain sensitive information such as cryptographic keys, a similar vulnerability to CVE-2006-1056. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processors in a security-relevant fashion that was not addressed by the kernels.

CVSS 2.0 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-2072

xen: Buffer overflow in xencontrol Python bindings affecting xend

Buffer overflow in the Python bindings for the xc_vcpu_setaffinity call in Xen 4.0.x, 4.1.x, and 4.2.x allows local administrators with permissions to configure VCPU affinity to cause a denial of service (memory corruption and xend toolstack crash) and possibly gain privileges via a crafted cpumap.

CVSS 2.0 · 7.4 High EPSS 1.1% KEV · Not listed

Vendors

Debian Xen

Products

Debian Linux Xen

CVE-2013-1964

xen: grant table hypercall acquire/release imbalance

Xen 4.0.x and 4.1.x incorrectly releases a grant reference when releasing a non-v1, non-transitive grant, which allows local guest administrators to cause a denial of service (host crash), obtain sensitive information, or possibly have other impacts via unspecified vectors.

CVSS 2.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-1952

kernel: xen: VT-d interrupt remapping source validation flaw for bridges

Xen 4.x, when using Intel VT-d for a bus mastering capable PCI device, does not properly check the source when accessing a bridge device's interrupt remapping table entries for MSI interrupts, which allows local guest domains to cause a denial of service (interrupt injection) via unspecified vectors.

CVSS 2.0 · 1.9 Low EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2013-1922

kvm: qemu-nbd block format auto-detection vulnerability

qemu-nbd in QEMU, as used in Xen 4.2.x, determines the format of a raw disk image based on the header, which allows local guest OS administrators to read arbitrary files on the host by modifying the header to identify a different format, which is used when the guest is restarted, a different vulnerability than CVE-2008-2004.

CVSS 2.0 · 3.3 Low EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen

CVE-2014-1950

xen: use-after-free in xc_cpupool_getinfo() under memory pressure (XSA-88)

Use-after-free vulnerability in the xc_cpupool_getinfo function in Xen 4.1.x through 4.3.x, when using a multithreaded toolstack, does not properly handle a failure by the xc_cpumap_alloc function, which allows local users with access to management functions to cause a denial of service (heap corruption) and possibly gain privileges via unspecified vectors.

CVSS 2.0 · 4.6 Medium EPSS < 1% KEV · Not listed

Vendors

Xen

Products

Xen