Qemu: serial: host memory leakage 16550A UART emulation

Memory leak in the serialexitcore function in hw/char/serial.c in QEMU aka Quick Emulator allows local guest OS privileged users to cause a denial of service host memory consumption and QEMU process crash via a large number of device unplug operations...

Qemu: usb: ehci host memory leakage during hotunplug

Memory leak in QEMU aka Quick Emulator, when built with USB EHCI Emulation support, allows local guest OS privileged users to cause a denial of service memory consumption by repeatedly hot-unplugging the device...

Qemu: ide: ahci host memory leakage during hotunplug

Memory leak in QEMU aka Quick Emulator, when built with IDE AHCI Emulation support, allows local guest OS privileged users to cause a denial of service memory consumption by repeatedly hot-unplugging the AHCI device...

Kernel: kvm: use after free in complete_emulated_mmio

arch/x86/kvm/emulate.c in the Linux kernel through 4.9.3 allows local users to obtain sensitive information from kernel memory or cause a denial of service use-after-free via a crafted application that leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt...

Kernel: kvm: page reference leakage in handle_vmon

Linux kernel built with the KVM visualization support CONFIGKVM, with nested visualizationnVMX feature enablednested=1, is vulnerable to host memory leakage issue. It could occur while emulating VMXON instruction in 'handlevmon'. An L1 guest user could use this flaw to leak host memory potentiall...

Kernel: kvm: use after free in complete_emulated_mmio

arch/x86/kvm/emulate.c in the Linux kernel through 4.9.3 allows local users to obtain sensitive information from kernel memory or cause a denial of service use-after-free via a crafted application that leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt...

[SECURITY] Fedora 25 Update: minicom-2.7.1-1.fc25

Minicom is a simple text-based modem control and terminal emulation program somewhat similar to MSDOS Telix. Minicom includes a dialing directory, full ANSI and VT100 emulation, an external scripting language, and other features...

[SECURITY] Fedora 24 Update: minicom-2.7.1-1.fc24

Minicom is a simple text-based modem control and terminal emulation program somewhat similar to MSDOS Telix. Minicom includes a dialing directory, full ANSI and VT100 emulation, an external scripting language, and other features...

openSUSE Security Update : qemu (openSUSE-2017-822)

This update for qemu fixes several issues. These security issues were fixed : - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service infinite loop by leveraging an incorrect return value bsc1042159. - CVE-2017-8379: Memory leak in the keyboard input...

Security update for qemu (important)

This update for qemu fixes several issues. These security issues were fixed: - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service infinite loop by leveraging an incorrect return value bsc1042159. - CVE-2017-8379: Memory leak in the keyboard input...

openSUSE: Security Advisory for xen (openSUSE-SU-2017:1826-1)

The remote host is missing an update for the Copyright C 2017 Greenbone Networks GmbH 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-or-later This program is free software; you can...

openSUSE Security Update : xen (openSUSE-2017-799)

This update for xen fixes several issues. These security issues were fixed : - CVE-2017-10912: Page transfer might have allowed PV guest to elevate privilege XSA-217, bsc1042882 - CVE-2017-10913 CVE-2017-10914: Races in the grant table unmap code allowed for informations leaks and potentially...

The vulnerability of the Xen hypervisor, a platform for server virtualization called XenServer, allows a attacker to cause a service failure, obtain confidential information, or execute arbitrary code.

The vulnerability of the Xen hypervisor and the XenServer platform for server virtualization exists due to insufficient validation of input data. Exploiting this vulnerability can allow a guest user of the 86-bit operating system running locally to obtain confidential information, execute arbitra...

SUSE-SU-2017:1774-1 Security update for qemu

This update for qemu fixes several issues. These security issues were fixed: - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service infinite loop by leveraging an incorrect return value bsc1042159. - CVE-2017-8379: Memory leak in the keyboard input...

SUSE-SU-2017:1770-1 Security update for xen

This update for xen fixes several issues. These security issues were fixed: - blkif responses leaked backend stack data, which allowed unprivileged guest to obtain sensitive information from the host or other guests XSA-216, bsc1042863 - Page transfer might have allowed PV guest to elevate...

Citrix XenServer Multiple Vulnerabilities (CTX224740)

The version of Citrix XenServer installed on the remote host is missing a security hotfix. It is, therefore, affected by multiple vulnerabilities : - A flaw exists that causes grant table operations to fail due to improper handling of reference counts. An unauthenticated, remote attacker can...

SUSE-SU-2017:1715-1 Security update for xen

This update for xen fixes the following security issues: - blkif responses leaked backend stack data, which allowed unprivileged guest to obtain sensitive information from the host or other guests XSA-216, bsc1042863 - Page transfer might have allowed PV guest to elevate privilege XSA-217,...

UBUNTU-CVE-2017-7518

A flaw was found in the Linux kernel before version 4.12 in the way the KVM module processed the trap flagTF bit in EFLAGS during emulation of the syscall instruction, which leads to a debug exceptionDB being raised in the guest stack. A user/process inside a guest could use this flaw to...

x86: insufficient reference counts during shadow emulation

ISSUE DESCRIPTION When using shadow paging, writes to guest pagetables must be trapped and emulated, so the shadows can be suitably adjusted as well. When emulating the write, Xen maps the guests pagetables to make the final adjustment and leave the guest's view of its state consistent. However,...

QEMU 'hw/usb/hcd-xhci.c' Denial of Service Vulnerability

QEMU is an open source emulator software. QEMU supports the 'hw/usb/hcd-xhci.c' security vulnerability in USB EHCI emulation, which allows local attackers to exploit the vulnerability by submitting a specially crafted request that triggers memory corruption and crashes the application...