Privilege Escalation

Linux kernel is vulnerable to privilege escalation. The VMX code sets the GDT.LIMIT to 64 KB and does not restore it to the previous host value. This allows an attacker is able to escalate their privileges by placing malicious entries to the per-cpu variables in the GDT with a corrupted GDT limit...

Juniper Junos vMX Predictable IP ID Sequence Numbers (JSA10903)

According to its self-reported version number, the remote Junos device uses a predictable IP ID sequence number. It is, therefore, vulnerable to a family of attacks that rely on this property, including a susceptibility to being used as a 'zombie' host in an 'idle scan' blind port scan of another...

RHEL 6 : kernel (RHSA-2018:2391)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:2391 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: Modern operating systems implement...

CVE-2018-10901

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cp...

KVM (Nested Virtualization) - L1 Guest Privilege Escalation Vulnerability

Exploit for linux platform in category dos / poc When KVM on Intel virtualizes another hypervisor as L1 VM it does not verify that VMX instructions from the L1 VM which trigger a VM exit and are emulated by L0 KVM are coming from ring 0. For code running on bare metal or VMX root mode this is...

KVM (Nested Virtualization) - L1 Guest Privilege Escalation

When KVM on Intel virtualizes another hypervisor as L1 VM it does not verify that VMX instructions from the L1 VM which trigger a VM exit and are emulated by L0 KVM are coming from ring 0. For code running on bare metal or VMX root mode this is enforced by hardware. However, for code running in L...

CentOS Update for libvirt CESA-2018:1396 centos7

Check the version of libvirt SPDX-FileCopyrightText: 2018 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 scriptoid"1.3.6.1.4.1.25623.1.0.882904";...

CentOS 7 : libvirt (CESA-2018:1396)

An update for libvirt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE...

Important: kernel

Issue Overview: A weakness was found in the Linux kernel's implementation of random seed data. Programs, early in the boot sequence, could use the data allocated for the seed before it was sufficiently generated. CVE-2018-1108 A flaw was found in the way the Linux kernel handled exceptions...

Oracle Linux 7 : libvirt (ELSA-2018-1396)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-1396 advisory. - qemu: avoid denial of service reading from QEMU monitor CVE-2018-5748 CVE-2018-5748 - qemu: avoid denial of service reading from QEMU guest agent...

Low: Red Hat Security Advisory: libvirt security and bug fix update

An update for libvirt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE...

libvirt security and bug fix update

3.9.0-14.el75.4 - lxc: Drop useless check in live device update rhbz1557922 - Pass oldDev to virDomainDefCompatibleDevice on device update rhbz1557922 - qemu: Fix updating device with boot order rhbz1557922 - conf: Fix crash in virDomainDefCompatibleDevice rhbz1557922 - vmx: check for...

kernel security and bug fix update

3.10.0-693.21.1.OL7 - Oracle Linux certificates Alexey Petrenko - Oracle Linux RHCK Module Signing Key was compiled into kernel [email protected] - Update x509.genkey bug 24817676 3.10.0-693.21.1 - x86 platform/uv: Mark tscchecksync as an init function Frank Ramsay...

OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0012) (Spectre)

The remote OracleVM system is missing necessary patches to address critical security updates : - Revert 'kernel.spec: Require the new microcodectl.' Brian Maly - xen-blkback: add pendingreq allocation stats Ankur Arora Orabug: 27386890 - xen-blkback: move indirect req allocation out-of-line Ankur...

Linux Kernel 'arch/x86/kvm/vmx.c' Denial of Service Vulnerability

Linux Kernel is the open source operating system. Linux Kernel 'arch/x86/kvm/vmx.c' has a denial of service vulnerability that allows an attacker to exploit the vulnerability by submitting a special request to crash the system...

CVE-2016-4924

An incorrect permissions vulnerability in Juniper Networks Junos OS on vMX may allow local unprivileged users on a host system read access to vMX or vPFE images and obtain sensitive information contained in them such as private cryptographic keys. This issue was found during internal product...

Information disclosure

An incorrect permissions vulnerability in Juniper Networks Junos OS on vMX may allow local unprivileged users on a host system read access to vMX or vPFE images and obtain sensitive information contained in them such as private cryptographic keys. This issue was found during internal product...

CVE-2016-4924

An incorrect permissions vulnerability in Juniper Networks Junos OS on vMX may allow local unprivileged users on a host system read access to vMX or vPFE images and obtain sensitive information contained in them such as private cryptographic keys. This issue was found during internal product...

CVE-2016-4924 vMX: Information leak vulnerability

An incorrect permissions vulnerability in Juniper Networks Junos OS on vMX may allow local unprivileged users on a host system read access to vMX or vPFE images and obtain sensitive information contained in them such as private cryptographic keys. This issue was found during internal product...

CVE-2016-4924

CVE-2016-4924 affects Juniper Networks Junos OS on vMX. The issue is an incorrect permissions vulnerability that allows local unprivileged users to read the vMX/vPFE images on the host and expose sensitive information, such as private cryptographic keys. Affected releases are Junos OS 15.1 prior ...