openstack-nova: network security group changes are not applied to running instances

A vulnerability was discovered in the way OpenStack Compute nova networking handled security group updates; changes were not applied to already running VM instances. A remote attacker could use this flaw to access running VM instances...

[SECURITY] Fedora 22 Update: xen-4.5.2-5.fc22

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

[SECURITY] Fedora 23 Update: xen-4.5.2-5.fc23

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

The vulnerability of Xen hypervisors, which allows a malicious actor to trigger a service failure

The vulnerability of the KVM subsystem in Xen hypervisors is related to resource management errors. Exploiting this vulnerability can allow an attacker, operating locally, to cause service failures by repeatedly triggering exceptions related to SVMs...

Flexible DDoS Defense: Bohatei

DDoS defense today relies on expensive and proprietary hardware appliances deployed at fixed locations. This introduces key limitations with respect to flexibility e.g., complex routing to get traffic to these “chokepoints” and elasticity in handling changing attack patterns. We observe an...

[SECURITY] Fedora 23 Update: xen-4.5.2-2.fc23

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

[SECURITY] Fedora 21 Update: xen-4.4.3-8.fc21

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

[SECURITY] Fedora 21 Update: xen-4.4.3-7.fc21

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

[SECURITY] Fedora 22 Update: xen-4.5.1-14.fc22

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

[SECURITY] Fedora 23 Update: xen-4.5.1-14.fc23

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

RHEL 7 : qemu-kvm (RHSA-2015:1943)

Updated qemu-kvm packages that fix one security issue are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fr...

Moderate: Red Hat Security Advisory: qemu-kvm security update

Updated qemu-kvm packages that fix one security issue are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fr...

Moderate: Red Hat Security Advisory: qemu-kvm-rhev security update

Updated qemu-kvm-rhev packages that fix one security issue are now available for Red Hat Enterprise Virtualization Hypervisor 7. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severit...

[SECURITY] Fedora 22 Update: xen-4.5.1-13.fc22

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

[SECURITY] Fedora 21 Update: xen-4.4.3-6.fc21

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

Oracle Linux 6 : qemu-kvm (ELSA-2015-1924)

The remote Oracle Linux 6 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2015-1924 advisory. 0.12.1.2-2.479.el67.2 - kvm-net-add-checks-to-validate-ring-buffer-pointers-CVE-.patch bz1263274 - Resolves: bz1263274 CVE-2015-5279 qemu-kvm: qemu: Heap overfl...

Scientific Linux Security Update : kvm on SL5.x x86_64 (20151022)

A heap buffer overflow flaw was found in the way QEMU's NE2000 NIC emulation implementation handled certain packets received over the network. A privileged user inside a guest could use this flaw to crash the QEMU instance denial of service or potentially execute arbitrary code on the host...

Important: Red Hat Security Advisory: qemu-kvm-rhev security update

Updated qemu-kvm-rhev packages that fix one security issue are now available for Red Hat Enterprise Virtualization. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Important: Red Hat Security Advisory: qemu-kvm security update

Updated qemu-kvm packages that fix one security issue are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

CentOS 7 : qemu-kvm (CESA-2015:1793)

Updated qemu-kvm packages that fix one security issue are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fr...