Denial Of Service (DoS)

xen is vulnerable to denial of service DoS. The vulnerability exists as it was discovered that the hypervisor's para-virtualized framebuffer PVFB backend failed to validate the frontend's framebuffer description properly. This could allow a privileged user in the unprivileged domain DomU to cause...

Arbitrary Code Execution

xen is vulnerable to arbitrary code execution. The hypervisor's para-virtualized framebuffer PVFB backend failed to validate the format of messages serving to update the contents of the framebuffer. This could allow a malicious user to cause a denial of service, or compromise the privileged domai...

Denial Of Service (DoS)

xen is vulnerable to denial of service. The hypervisor's para-virtualized framebuffer PVFB backend failed to validate the frontend's framebuffer description. This could allow a malicious user to cause a denial of service, or to use a specially crafted frontend to compromise the privileged domain...

Information Disclosure

Vino is a Virtual Network Computing VNC server for GNOME. It allows remote users to connect to a running GNOME session using VNC. It was found that Vino transmitted all clipboard activity on the system running Vino to all clients connected to port 5900, even those who had not authenticated. A...

Qemu: memory exhaustion through framebuffer update request message in VNC server

VNC server implementation in Quick Emulator QEMU was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto this data. A...

OracleVM 3.3 : Unbreakable / etc (OVMSA-2018-0237)

The remote OracleVM system is missing necessary patches to address critical security updates : - dm: fix race between dmgetfromkobject and dmdestroy Hou Tao CVE-2017-18203 - drm: udl: Properly check framebuffer mmap offsets Greg Kroah-Hartman Orabug: 27986407 CVE-2018-8781 - kernel/exit.c: avoid...

CVE-2018-8781

The udlfbmmap function in drivers/gpu/drm/udl/udlfb.c at the Linux kernel version 3.4 and up to and including 4.15 has an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code...

Qemu: memory exhaustion through framebuffer update request message in VNC server

VNC server implementation in Quick Emulator QEMU was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto this data. A...

RHEL 7 : qemu-kvm (RHSA-2018:0816)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:0816 advisory. Kernel-based Virtual Machine KVM is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide th...

libvncserver: Improper input sanitization in rfbProcessClientNormalMessage in rfbserver.c

An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact e.g., an integer overflow via specially crafted VNC packets...

Qemu: memory exhaustion through framebuffer update request message in VNC server

VNC server implementation in Quick Emulator QEMU was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto this data. A...

Qemu: memory exhaustion through framebuffer update request message in VNC server

VNC server implementation in Quick Emulator QEMU was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto this data. A...

USN-3583-1: Linux kernel vulnerabilities

It was discovered that an out-of-bounds write vulnerability existed in the Flash-Friendly File System f2fs in the Linux kernel. An attacker could construct a malicious file system that, when mounted, could cause a denial of service system crash or possibly execute arbitrary code. CVE-2017-0750 It...

DEBIAN-CVE-2018-6412

In the function sbusfbioctlhelper in drivers/video/fbdev/sbuslib.c in the Linux kernel through 4.15, an integer signedness error allows arbitrary information leakage for the FBIOPUTCMAPSPARC and FBIOGETCMAPSPARC commands...

Design/Logic Flaw

VNC server implementation in Quick Emulator QEMU 2.11.0 and older was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto th...

DEBIAN-CVE-2017-15124

VNC server implementation in Quick Emulator QEMU 2.11.0 and older was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto th...

CVE-2017-15124

VNC server implementation in Quick Emulator QEMU 2.11.0 and older was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto th...

UBUNTU-CVE-2017-15124

VNC server implementation in Quick Emulator QEMU 2.11.0 and older was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto th...

CVE-2017-15124

VNC server implementation in Quick Emulator QEMU was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto this data. A...

Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-3469-1)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3469-1 advisory. Anthony Perard discovered that the Xen virtual block driver did not properly initialize some data structures before passing them to user space. A local...