Scientific Linux Security Update : kernel on SL7.x x86_64 (20190423)

Security Fixes : - Kernel: KVM: potential use-after-free via kvmioctlcreatedevice CVE-2019-6974 - Kernel: KVM: nVMX: use-after-free of the hrtimer for emulation of the preemption timer CVE-2019-7221 Bug Fixes : - rbd: avoid corruption on partially completed bios rhel-7.6.z - xfsvmwritepages deadl...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 7. 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 from th...

Moderate: Red Hat Security Advisory: openvswitch security, bug fix, and enhancement update

An update for openvswitch is now available for Fast Datapath for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

openSUSE Security Update : openvswitch (openSUSE-2017-973)

This update for openvswitch fixes the following issues : - CVE-2017-9263: OpenFlow role status message can cause a call to abort leading to application crash bsc1041470 - CVE-2017-9265: Buffer over-read while parsing message could lead to crash or maybe arbitrary code execution bsc1041447 - Do no...

Ovs-vswitchd daemon showing high CPU usage

XenServer 6.5 SP1 heavy IO traffic/ CPU utilization with open vswitch technology. Ovs-vswitchd daemon running on the XS was showing high CPU usage and performance tab shows heavy CPU usage...

CVE-2016-2074

Buffer overflow in lib/flow.c in ovs-vswitchd in Open vSwitch 2.2.x and 2.3.x before 2.3.3 and 2.4.x before 2.4.1 allows remote attackers to execute arbitrary code via crafted MPLS packets, as demonstrated by a long string in an ovs-appctl command...

CVE-2016-2074

Buffer overflow in lib/flow.c in ovs-vswitchd in Open vSwitch 2.2.x and 2.3.x before 2.3.3 and 2.4.x before 2.4.1 allows remote attackers to execute arbitrary code via crafted MPLS packets, as demonstrated by a long string in an ovs-appctl command...

CVE-2016-2074

Open vSwitch: MPLS processing in ovs-vswitchd contains a buffer overflow in OpenFlow/MPLS label handling affecting Open vSwitch 2.2.x and 2.3.x before 2.3.3 and 2.4.x before 2.4.1. A remote attacker can exploit crafted MPLS packets to achieve arbitrary code execution or DoS. Upstream fixes are in...

How to Remove ovs-vswitchd Manager Permanently from XenServer Config

This article describes how to remove ovs-vswitchd manager permanently from XenServer config. Citrix Distributed Virtual Switch/Controller DVSC that connects to the open-vswitchd running on the XenServer DOM0 machines. DVSC is proved to cause some trouble with the Virtual Machines VMs. In...