CVE-2018-18883

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service NULL pointer dereference or possibly have unspecified other impact because nested VT-x is not properly restricted...

CVE-2018-18883

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service NULL pointer dereference or possibly have unspecified other impact because nested VT-x is not properly restricted...

CVE-2018-18883

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service NULL pointer dereference or possibly have unspecified other impact because nested VT-x is not properly restricted...

CVE-2018-18883

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service NULL pointer dereference or possibly have unspecified other impact because nested VT-x is not properly restricted...

CVE-2018-18883

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service NULL pointer dereference or possibly have unspecified other impact because nested VT-x is not properly restricted...

CVE-2018-18883: NULL Pointer Dereference

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service NULL pointer dereference or possibly have unspecified other impact because nested VT-x is not properly restricted...

CVE-2018-18883

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service NULL pointer dereference or possibly have unspecified other impact because nested VT-x is not properly restricted...

PT-2018-3389

Name of the Vulnerable Software and Affected Versions: Xen versions 4.9.x through 4.11.x Description: An issue in Xen on Intel x86 platforms allows x86 HVM and PVH guests to cause a host OS denial of service or possibly have other impact due to improper restriction of nested VT-x, leading to a NU...

Xen Project Nested VT-x Instruction Guest-to-Host DoS (XSA-278)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a guest-to-host denial of service vulnerability. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or...

x86: Nested VT-x usable even when disabled

ISSUE DESCRIPTION When running HVM guests, virtual extensions are enabled in hardware because Xen is using them. As a result, a guest can blindly execute the virtualisation instructions, and will exit to Xen for processing. In the case that the guest hasn't followed the correct virtual...

openSUSE Security Update : kernel (openSUSE-SU-2011:0004-1)

The openSUSE 11.3 kernel was updated to fix various bugs and security issues. Following security issues have been fixed: CVE-2010-4347: A local user could inject ACPI code into the kernel via the world-writable 'customdebug' file, allowing local privilege escalation. CVE-2010-4258: A local attack...

Oracle Linux 5 : kvm (ELSA-2010-0627)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2010-0627 advisory. - Resolves: bz619412 CVE-2010-2784 qemu: insufficient constraints checking in exec.c:subpageregister rhel-5.5.z -...

RHEL 5 : kvm (RHSA-2010:0627)

Updated kvm packages that fix three security issues and multiple bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity...

kmod, kvm security update

CentOS Errata and Security Advisory CESA-2010:0627 Updated kvm packages that fix three security issues and multiple bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring...

Null pointer dereference

The Hypervisor aka rhev-hypervisor in Red Hat Enterprise Virtualization RHEV 2.2, and KVM 83, when the Intel VT-x extension is enabled, allows guest OS users to cause a denial of service NULL pointer dereference and host OS crash via vectors related to instruction emulation...

Linux kernel 2.6.x KVM Intel VT-x扩展空指针引用拒绝服务漏洞

BUGTRAQ ID: 42582 CVE ID: CVE-2010-0435 Linux Kernel是开放源码操作系统Linux所使用的内核。 主机系统上的处理器启用了Intel VT-x扩展时存在空指针引用漏洞。如果模拟器受骗模拟了mov to/from DR指令，由于没有初始化kvmx86ops-set|getdr，可能会触发这个空指针引用，导致主机崩溃。 Linux kernel 2.6.x 厂商补丁： Linux ----- 目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://patchwork.kernel.org/patch/95725/...

CVE-2010-0435

The Hypervisor aka rhev-hypervisor in Red Hat Enterprise Virtualization RHEV 2.2, and KVM 83, when the Intel VT-x extension is enabled, allows guest OS users to cause a denial of service NULL pointer dereference and host OS crash via vectors related to instruction emulation...

Important: Red Hat Security Advisory: rhev-hypervisor security and bug fix update

Updated rhev-hypervisor packages that fix multiple security issues and two bugs are now available. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings, are availabl...

kvm: vmx null pointer dereference

The Hypervisor aka rhev-hypervisor in Red Hat Enterprise Virtualization RHEV 2.2, and KVM 83, when the Intel VT-x extension is enabled, allows guest OS users to cause a denial of service NULL pointer dereference and host OS crash via vectors related to instruction emulation...