openSUSE Security Update : virtualbox (openSUSE-2019-84)

This update for virtualbox version 5.2.24 fixes the following issues : Update fixes multiple vulnerabilities : CVE-2019-2500, CVE-2019-2524, CVE-2019-2552, CVE-2018-3309, CVE-2019-2520 CVE-2019-2521, CVE-2019-2522, CVE-2019-2523, CVE-2019-2526, CVE-2019-2548 CVE-2018-11763, CVE-2019-2511,...

EulerOS 2.0 SP3 : kernel (EulerOS-SA-2018-1433)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - It was found that paravirtpatchcall/jump functions in the arch/x86/kernel/paravirt.c in the Linux kernel mishandles certain indirect calls, whic...

Xen Project INVPCID with Non-Canonical Addresses DoS (XSA-279)

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. An attacker located on a guest virtual machine may be able to exploit this vulnerability to affect the availability of the host system. On...

Xen Project x86 IOREQ Server Resource Accounting DoS (XSA-276)

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. An attacker located on a guest virtual machine may be able to exploit this vulnerability to affect the availability of the host system. Th...

UBUNTU-CVE-2018-19966

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service host OS crash or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorre...

DEBIAN-CVE-2018-19965

An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service host OS crash because GP0 can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 aka Meltdown mitigation...

Marriott hotel data breach: Sensitive data of 500 million guests stolen

By Waqas Marriott has announced that it has suffered a massive data breach after attackers hacked its guest reservation system at Starwood hotels, a group of hotels the company took over in 2016 - These hotels include Sheraton, St. Regis, Westin and W Hotels. The breach was discovered last week...

Marriott: Data on 500 Million Guests Stolen in 4-Year Breach

Hospitality giant Marriott today disclosed a massive data breach exposing the personal and financial information on as many as a half billion customers who made reservations at any of its Starwood properties over the past four years. Marriott said the breach involved unauthorized access to a...

openSUSE Security Update : virtualbox (openSUSE-2018-1443)

This update for virtualbox fixes the following issues : virtualbox was updated to version 5.2.22 released November 09 2018 by Oracle. Security issues fixed : - Fixed a guest-to-host excape via the e1000 virtual network driver bsc1115041. Non-security issues fixed : - Audio: Fixed a regression in...

EulerOS Virtualization 2.5.2 : kernel (EulerOS-SA-2018-1372)

According to the version of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability : - It was found that paravirtpatchcall/jump functions in the arch/x86/kernel/paravirt.c in the Linux kernel mishandles certain indirect...

Virtuozzo 6 : spice-server / spice-server-devel (VZLSA-2018-3522)

An update for spice-server is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

spice security update

CentOS Errata and Security Advisory CESA-2018:3522 An update for spice-server is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed...

x86: DoS from attempting to use INVPCID with a non-canonical addresses

ISSUE DESCRIPTION The INVPCID instruction raises GP0 if an attempt is made to invalidate a non-canonical address. Older flushing mechanisms such as INVLPG tolerate this without error, and perform no action. There is one guest accessible path in Xen where a non-canonical address was passed into th...

Fix for XSA-240 conflicts with shadow paging

ISSUE DESCRIPTION The fix for XSA-240 introduced a new field into the control structure associated with each page of RAM. This field was added to a union, another member of which is used when Xen uses shadow paging for the guest. During migration, or with the L1TF XSA-273 mitigation for PV guests...

resource accounting issues in x86 IOREQ server handling

ISSUE DESCRIPTION Allocation of pages used to communicate with external emulators did not follow certain principles that are required for proper life cycle management of guest exposed pages. IMPACT A compromised DM stubdomain may cause Xen to crash, resulting in a DoS Denial of Service affecting...

Debian DSA-4338-1 : qemu - security update

Integer overflows in the processing of packets in network cards emulated by QEMU, a fast processor emulator, could result in denial of service. In addition this update backports support to passthrough the new CPU features added in the intel-microcode update shipped in DSA 4273 to x86-based guests...

F5 Networks BIG-IP : vCMP vulnerability (K03165684)

Malicious root users with access to a vCMP guest can disrupt service on adjacent vCMP guests running on the same host. Exploiting this vulnerability causes the vcmpd process on the adjacent vCMP guest to restart and produce a core file. This issue is only exploitable on a vCMP guest which is...

UBUNTU-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...

DEBIAN-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...