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...

UBUNTU-CVE-2017-14156

The atyfbioctl function in drivers/video/fbdev/aty/atyfbbase.c in the Linux kernel through 4.12.10 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory by reading locations associated with padding bytes...

gtk-vnc: Improper check of framebuffer boundaries when processing a tile

It was found that gtk-vnc lacked proper bounds checking while processing messages using RRE, hextile, or copyrect encodings. A remote malicious VNC server could use this flaw to crash VNC viewers which are based on the gtk-vnc library...

USN-3361-1: Linux kernel (HWE) vulnerabilities

USN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. Please note that this update changes the Linux HWE kernel to the 4.10 based kernel from Ubuntu...