qemu: vnc: insufficient resource limiting in VNC websockets decoder

It was found that the QEMU's websocket frame decoder processed incoming frames without limiting resources used to process the header and the payload. An attacker able to access a guest's VNC console could use this flaw to trigger a denial of service on the host by exhausting all available memory...

Unspecified Vulnerability in Oracle Sun Solaris (CNVD-2015-06809)

Oracle Sun Solaris is a set of Unix-like operating systems from Oracle. An unspecified vulnerability exists in Oracle Sun Solaris 11.2. Allows a local user to affect the confidentiality, integrity, and availability of the virtual NIC driver by vectoring the kernel band associated with the...

Updated qemu packages fixes security vulnerabilities

Qinghao Tang of QIHU 360 Inc. discovered an infinite loop issue in the NE2000 NIC emulation. A privileged guest user could use this flaw to mount a denial of service QEMU process crash. CVE-2015-5278 Qinghao Tang of QIHU 360 Inc. discovered a heap buffer overflow flaw in the NE2000 NIC emulation....

Microsoft Chooses Ubuntu Linux for their Cloud-based Azure HDInsight Big Data Solution

Earlier this month, Microsoft surprised us all with the announcement that they built a Linux kernel-based operating system, Azure Cloud Switch ACS, for developing software products for Network Devices. Now, Microsoft just announced that they have selected Ubuntu as the operating system for their...

USN-2745-1 qemu, qemu-kvm vulnerabilities

Lian Yihan discovered that QEMU incorrectly handled certain payload messages in the VNC display driver. A malicious guest could use this issue to cause the QEMU process to hang, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. CVE-2015-5239 Qinghao...

QEMU 'vnc.c' Denial of Service Vulnerability

QEMU is an open source emulator software. An integer overflow vulnerability exists in QEMU's VNC display driver, located in vncclientread and protocolclientmsg, which can be exploited by a client user to cause the VNC driver to loop indefinitely, causing the QEMU process to crash, via a larger...

USN-2630-1 qemu, qemu-kvm vulnerabilities

Matt Tait discovered that QEMU incorrectly handled the virtual PCNET driver. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt,...

Vulnerabilities in the OpenSUSE operating system that allow malicious actors to compromise the confidentiality, integrity, and accessibility of protected information

The multiple vulnerabilities in the vnc operating system package of OpenSUSE can lead to breaches of the confidentiality, integrity, and accessibility of protected information. These vulnerabilities can be exploited remotely...

openstack-nova: console Cross-Site WebSocket hijacking

It was discovered that the OpenStack Compute nova console websocket did not correctly verify the origin header. An attacker could use this flaw to conduct a cross-site websocket hijack attack. Note that only Compute setups with VNC or SPICE enabled were affected by this flaw...

openstack-nova: console Cross-Site WebSocket hijacking

It was discovered that the OpenStack Compute nova console websocket did not correctly verify the origin header. An attacker could use this flaw to conduct a cross-site websocket hijack attack. Note that only Compute setups with VNC or SPICE enabled were affected by this flaw...

openstack-nova: console Cross-Site WebSocket hijacking

It was discovered that the OpenStack Compute nova console websocket did not correctly verify the origin header. An attacker could use this flaw to conduct a cross-site websocket hijack attack. Note that only Compute setups with VNC or SPICE enabled were affected by this flaw...

qemu: vnc: insufficient bits_per_pixel from the client sanitization

An uninitialized data structure use flaw was found in the way the setpixelformat function sanitized the value of bitsperpixel. An attacker able to access a guest's VNC console could use this flaw to crash the guest...

libvncserver: server stacked-based buffer overflow flaws in file transfer handling

Two stack-based buffer overflow flaws were found in the way LibVNCServer handled file transfers. A remote attacker could use this flaw to crash the VNC server using a malicious VNC client...

libvncserver: NULL pointer dereference flaw in framebuffer setup

A NULL pointer dereference flaw was found in LibVNCServer's framebuffer setup. A malicious VNC server could use this flaw to cause a VNC client to crash...

openstack-nova: Nova VMware driver may connect VNC to another tenant's console

A race condition flaw was found in the way the nova VMware driver handled VNC port allocation. An authenticated user could use this flaw to gain unauthorized console access to instances belonging to other tenants by repeatedly spawning new instances. Note that only nova setups using the VMware...

openstack-nova: Nova VMware driver may connect VNC to another tenant's console

A race condition flaw was found in the way the nova VMware driver handled VNC port allocation. An authenticated user could use this flaw to gain unauthorized console access to instances belonging to other tenants by repeatedly spawning new instances. Note that only nova setups using the VMware...

[SECURITY] Fedora 20 Update: openstack-neutron-2013.2.4-4.fc20

Neutron is a virtual network service for Openstack. Just like OpenStack Nova provides an API to dynamically request and configure virtual servers, Neutron provides an API to dynamically request and configure virtual networks. These networks connect "interfaces" from other OpenStack services e.g.,...

Design/Logic Flaw

The Virtual Network Management Center VNMC policy implementation in Cisco ASA Software 8.7 before 8.71.14, 9.2 before 9.22.8, and 9.3 before 9.31.1 allows local users to obtain Linux root access by leveraging administrative privileges and executing a crafted script, aka Bug IDs CSCuq41510 and...

PT-2014-5377 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 2.6.36 Description: The issue is related to the incorrect use of macros for netdev printk and its related logging implementation in the Linux kernel. This can be exploited by remote attackers to cause a denial o...

[SECURITY] Fedora 20 Update: openstack-neutron-2013.2.3-13.fc20

Neutron is a virtual network service for Openstack. Just like OpenStack Nova provides an API to dynamically request and configure virtual servers, Neutron provides an API to dynamically request and configure virtual networks. These networks connect "interfaces" from other OpenStack services e.g.,...