xen: Various unimplemented hypercalls log without rate limiting on ARM

Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of (1) HYPERVISOR_physdev_op hypercalls, which are not properly handled in the do_physdev_op function in arch/arm/physdev.c, or (2) HYPERVISOR_hvm_op hypercalls, which are not properly handled in the do_hvm_op function in arch/arm/hvm.c.

IBM MQ Light before 1.0.0.2 allows remote attackers to cause a denial of service (disk consumption) via a crafted byte sequence in authentication data, a different vulnerability than CVE-2015-1958 and CVE-2015-1987.

xen: leak of main per-domain vcpu pointer array

Multiple memory leaks in Xen 4.0 through 4.6.x allow local guest administrators or domains with certain permission to cause a denial of service (memory consumption) via a large number of "teardowns" of domains with the vcpu pointer array allocated using the (1) XEN_DOMCTL_max_vcpus hypercall or the xenoprofile state vcpu pointer array allocated using the (2) XENOPROF_get_buffer or (3) XENOPROF_set_passive hypercall.

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

The p2m_pod_emergency_sweep 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," related to Populate-on-Demand.

xen: populate-on-demand balloon size inaccuracy can crash guests on x86

The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.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 (guest crash) via unspecified vectors related to "heavy memory pressure."

xen: libxl leak of PV kernel can cause OOM condition

The libxl toolstack library in Xen 4.1.x through 4.6.x does not properly release mappings of files used as kernels and initial ramdisks when managing multiple domains in the same process, which allows attackers to cause a denial of service (memory and disk consumption) by starting domains.

IBM MQ Light before 1.0.0.2 allows remote attackers to cause a denial of service (CPU consumption) via a crafted byte sequence in authentication data.

rabbitmq-server: DoS via lengths_age or lengths_incr parameter in the management plugin

The Management plugin in RabbitMQ before 3.6.1 allows remote authenticated users with certain privileges to cause a denial of service (resource consumption) via the (1) lengths_age or (2) lengths_incr parameter.

w3m: Memory exhaustion due to repeatedly appending '<table>'

An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (infinite loop and resource consumption) via a crafted HTML page.

kernel: State machine confusion bug in vfio driver leading to memory corruption

drivers/vfio/pci/vfio_pci.c in the Linux kernel through 4.8.11 allows local users to bypass integer overflow checks, and cause a denial of service (memory corruption) or have unspecified other impact, by leveraging access to a vfio PCI device file for a VFIO_DEVICE_SET_IRQS ioctl call, aka a "state machine confusion bug."

gd: gdImageScaleTwoPass function in gd_interpolation.c uses inconsistent allocate and free approaches

The gdImageScaleTwoPass function in gd_interpolation.c in the GD Graphics Library (aka libgd) before 2.2.0, as used in PHP before 5.6.12, uses inconsistent allocate and free approaches, which allows remote attackers to cause a denial of service (memory consumption) via a crafted call, as demonstrated by a call to the PHP imagescale function.

kernel: overlayfs: Double dentry reference leak in copy-up failure

fs/overlayfs/copy_up.c in the Linux kernel before 4.2.6 uses an incorrect cleanup code path, which allows local users to cause a denial of service (dentry reference leak) via filesystem operations on a large file in a lower overlayfs layer.

All versions of NVIDIA GPU Display Driver contain a vulnerability in the kernel mode layer (nvlddmkm.sys for Windows or nvidia.ko for Linux) where a user can cause a GPU interrupt storm, leading to a denial of service.

perl-SOAP-Lite: XML exponential entity expansion denial-of-service

In Soap Lite (aka the SOAP::Lite extension for Perl) 1.14 and earlier, an example attack consists of defining 10 or more XML entities, each defined as consisting of 10 of the previous entity, with the document consisting of a single instance of the largest entity, which expands to one billion copies of the first entity. The amount of computer memory used for handling an external SOAP call would likely exceed that available to the process parsing the XML.

The Intelligent Baseboard Management Controller (iBMC) in Huawei RH1288 V3 servers with software before V100R003C00SPC613; RH2288 V3 servers with software before V100R003C00SPC617; RH2288H V3 servers with software before V100R003C00SPC515; RH5885 V3 servers with software before V100R003C10SPC102; and XH620 V3, XH622 V3, and XH628 V3 servers with software before V100R003C00SPC610 allows local users to cause a denial of service (iBMC resource consumption) via unspecified vectors.

Memory leak in queue-manager agents in IBM WebSphere MQ 8.x before 8.0.0.5 allows remote attackers to cause a denial of service (heap memory consumption) by triggering many errors.

Kernel: powerpc: kvm: Infinite loop via H_CEDE hypercall when running under hypervisor-mode

arch/powerpc/kvm/book3s_hv_rmhandlers.S in the Linux kernel through 4.7 on PowerPC platforms, when CONFIG_KVM_BOOK3S_64_HV is enabled, allows guest OS users to cause a denial of service (host OS infinite loop) by making a H_CEDE hypercall during the existence of a suspended transaction.

Use-after-free vulnerability in UnrealIRCd 3.2.10 before 3.2.10.2 allows remote attackers to cause a denial of service (crash) via unspecified vectors. NOTE: this identifier was SPLIT per ADT2 due to different vulnerability types. CVE-2013-7384 was assigned for the NULL pointer dereference.

PowerDNS (aka pdns) Authoritative Server before 3.4.10 allows remote attackers to cause a denial of service (backend CPU consumption) via a long qname.

PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query.