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CVE-2015-5239

qemu-kvm: Integer overflow in vnc_client_read() and protocol_client_msg()

Integer overflow in the VNC display driver in QEMU before 2.1.0 allows attachers to cause a denial of service (process crash) via a CLIENT_CUT_TEXT message, which triggers an infinite loop.

CVSS 3.1 · 6.5 Medium EPSS 3.6% KEV · Not listed
Vendors
Arista Canonical Fedoraproject and 2 more
Products
Eos Ubuntu Linux Fedora and 5 more
CVE-2014-3471

Qemu: hw: pci: use after free triggered via guest

Use-after-free vulnerability in hw/pci/pcie.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (QEMU instance crash) via hotplug and hotunplug operations of Virtio block devices.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Qemu
Products
Qemu
CVE-2014-0148

Qemu: vhdx: bounds checking for block_size and logical_sector_size

Qemu before 2.0 block driver for Hyper-V VHDX Images is vulnerable to infinite loops and other potential issues when calculating BAT entries, due to missing bounds checks for block_size and logical_sector_size variables. These are used to derive other fields like 'sectors_per_block' etc. A user able to alter the Qemu disk image could ise this flaw to crash the Qemu instance resulting in DoS.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Qemu Redhat
Products
Qemu Enterprise Linux Enterprise Linux Desktop and 8 more
CVE-2014-0147

Qemu: block: possible crash due signed types or logic error

Qemu before 1.6.2 block diver for the various disk image formats used by Bochs and for the QCOW version 2 format, are vulnerable to a possible crash caused by signed data types or a logic error while creating QCOW2 snapshots, which leads to incorrectly calling update_refcount() routine.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Qemu Redhat
Products
Fedora Qemu Enterprise Linux and 9 more
CVE-2014-0144

Qemu: block: missing input validation

QEMU before 2.0.0 block drivers for CLOOP, QCOW2 version 2 and various other image formats are vulnerable to potential memory corruptions, integer/buffer overflows or crash caused by missing input validations which could allow a remote user to execute arbitrary code on the host with the privileges of the QEMU process.

CVSS 3.1 · 8.6 High EPSS 1.0% KEV · Not listed
Vendors
Qemu Redhat
Products
Qemu Enterprise Linux Enterprise Linux Desktop and 8 more
CVE-2013-4536

qemu: virtio: insufficient validation of num_sg when mapping

An user able to alter the savevm data (either on the disk or over the wire during migration) could use this flaw to to corrupt QEMU process memory on the (destination) host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Qemu Redhat
Products
Qemu Enterprise Linux Openstack
CVE-2013-4535

qemu: virtio: insufficient validation of num_sg when mapping

The virtqueue_map_sg function in hw/virtio/virtio.c in QEMU before 1.7.2 allows remote attackers to execute arbitrary files via a crafted savevm image, related to virtio-block or virtio-serial read.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Qemu Redhat
Products
Qemu Enterprise Linux Enterprise Linux Desktop and 5 more
CVE-2013-4532

qemu: stellaris_enet: buffer overrun on incoming migration

Qemu 1.1.2+dfsg to 2.1+dfsg suffers from a buffer overrun which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Qemu
Products
Ubuntu Linux Debian Linux Qemu
CVE-2013-2016

qemu: virtio: out-of-bounds config space access

A flaw was found in the way qemu v1.3.0 and later (virtio-rng) validates addresses when guest accesses the config space of a virtio device. If the virtio device has zero/small sized config space, such as virtio-rng, a privileged guest user could use this flaw to access the matching host's qemu address space and thus increase their privileges on the host.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Debian Novell Qemu
Products
Debian Linux Open Desktop Server Open Enterprise Server and 1 more