USN-1514-1: Linux kernel (OMAP4) vulnerabilities

A flaw was discovered in the Linux kernel's macvtap device driver, which is used in KVM Kernel-based Virtual Machine to create a network bridge between host and guest. A privleged user in a guest could exploit this flaw to crash the host, if the vhostnet module is loaded with the...

Ubuntu Update for qemu-kvm USN-1522-1

Ubuntu Update for Linux kernel vulnerabilities USN-1522-1 OpenVAS Vulnerability Test $Id: gbubuntuUSN15221.nasl 7960 2017-12-01 06:58:16Z santu $ Ubuntu Update for qemu-kvm USN-1522-1 Authors: System Generated Check Copyright: Copyright c 2012 Greenbone Networks GmbH, http://www.greenbone.net Thi...

Ubuntu 10.04 LTS / 11.04 / 11.10 / 12.04 LTS : qemu-kvm vulnerability (USN-1522-1)

It was discovered that QEMU incorrectly handled temporary files when creating a snapshot. A local attacker could use this flaw to possibly overwrite files with root privilege, or obtain sensitive information from the guest. Note that Tenable Network Security has extracted the preceding descriptio...

Ubuntu: Security Advisory (USN-1522-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2012 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Scientific Linux Security Update : qemu-kvm on SL6.x x86_64

KVM Kernel-based Virtual Machine is a full virtualization solution for Linux on AMD64 and Intel 64 systems. qemu-kvm is the user-space component for running virtual machines using KVM. It was found that qemu-kvm did not properly drop supplemental group privileges when the root user started guests...

Scientific Linux Security Update : kvm on SL5.x x86_64

A flaw was found in the way QEMU-KVM handled the reloading of fs and gs segment registers when they had invalid selectors. A privileged host user with access to '/dev/kvm' could use this flaw to crash the host denial of service. CVE-2010-3698 The following procedure must be performed before this...

Scientific Linux Security Update : kvm on SL5.x x86_64

A data structure field in kvmvcpuioctlx86getvcpuevents in QEMU-KVM was not initialized properly before being copied to user-space. A privileged host user with access to '/dev/kvm' could use this flaw to leak kernel stack memory to user-space. CVE-2010-4525 These updated packages also fix several...

Scientific Linux Security Update : kvm on SL5.x x86_64

It was found that QEMU-KVM on the host did not validate all pointers provided from a guest system's QXL graphics card driver. A privileged guest user could use this flaw to cause the host to dereference an invalid pointer, causing the guest to crash denial of service or, possibly, resulting in th...

Scientific Linux Security Update : kernel on SL6.x i386/x86_64

Security issues : - Using PCI passthrough without interrupt remapping support allowed KVM guests to generate MSI interrupts and thus potentially inject traps. A privileged guest user could use this flaw to crash the host or possibly escalate their privileges on the host. The fix for this issue ca...

Scientific Linux Security Update : xorg-x11-server on SL5.x i386/x86_64 (20120221)

X.Org is an open source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. A flaw was found in the way the X.Org server handled lock files. A local user with access to the system console could use thi...

Scientific Linux Security Update : kernel on SL4.x i386/x86_64

Security fixes : - A flaw in sctppacketconfig in the Linux kernel's Stream Control Transmission Protocol SCTP implementation could allow a remote attacker to cause a denial of service. CVE-2010-3432, Important - A missing integer overflow check in sndctlnew in the Linux kernel's sound subsystem...

Scientific Linux Security Update : kernel on SL6.x i386/x86_64

This update fixes the following security issues : - Missing sanity checks in the Intel i915 driver in the Linux kernel could allow a local, unprivileged user to escalate their privileges. CVE-2010-2962, Important - compatallocuserspace in the Linux kernel 32/64-bit compatibility layer...

Scientific Linux Security Update : qemu-kvm on SL6.x x86_64

A flaw was found in the way the VNC 'password' option was handled. Clearingaa password disabled VNC authentication, allowing a remote user able to connect to the virtual machines' VNC ports to open a VNC session without authentication. CVE-2011-0011 After installing this update, shut down all...

Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20120306)

The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues : - A buffer overflow flaw was found in the way the Linux kernel's XFS file system implementation handled links with overly long path names. A local, unprivileged...

Scientific Linux Security Update : kvm on SL5.x x86_64

It was found that some structure padding and reserved fields in certain data structures in QEMU-KVM were not initialized properly before being copied to user-space. A privileged host user with access to '/dev/kvm' could use this flaw to leak kernel stack memory to user-space. CVE-2010-3881 This...

Scientific Linux Security Update : kvm on SL5.4 x86_64

CVE-2009-4031 kernel: KVM: x86 emulator: limit instructions to 15 bytes On x86 platforms, the doinsnfetch function did not limit the amount of instruction bytes fetched per instruction. Users in guest operating systems could leverage this flaw to cause large latencies on SMP hosts that could lead...

Scientific Linux Security Update : kernel on SL4.x i386/x86_64

Security fixes : - a NULL pointer dereference flaw was found in the Linux kernel NFSv4 implementation. Several of the NFSv4 file locking functions failed to check whether a file had been opened on the server before performing locking operations on it. A local, unprivileged user on a system with a...

Scientific Linux Security Update : kvm on SL5.4 i386/x86_64

The x86 emulator implementation was missing a check for the Current Privilege Level CPL and I/O Privilege Level IOPL. A user in a guest could leverage these flaws to cause a denial of service guest crash or possibly escalate their privileges within that guest. CVE-2010-0298, CVE-2010-0306 A flaw...

Scientific Linux Security Update : kvm on SL5.x x86_64 (20120123)

KVM Kernel-based Virtual Machine is a full virtualization solution for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for the standard Scientific Linux kernel. A heap overflow flaw was found in the way QEMU-KVM emulated the e1000 network interface card. A privileged guest...

Scientific Linux Security Update : qspice on SL5.x x86_64

It was found that the libspice component of QEMU-KVM on the host did not validate all pointers provided from a guest system's QXL graphics card driver. A privileged guest user could use this flaw to cause the host to dereference an invalid pointer, causing the guest to crash denial of service or,...