KernelCare Blog

KernelCare Blog

by / Wednesday, 12 July 2017
LibCare, a toolset for livepatching of user space software, is now available as Open Source on GitHub

I am super thrilled to let you know that we have published a toolset for livepathing of user space software, called LibCare, to GitHub. It is released under the GPL2 license and allows software developers to develop and apply patches to their running software without the need to restart...

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Topic: in KernelCare Blog


by / Tuesday, 20 June 2017
Major vulnerability: The Stack Clash security issue found that affects most Linux kernels

[Last updated Jun 22, 12:05PM PDT]

A new major local privilege escalation vulnerability in the Linux kernel was disclosed yesterday, June 19th, 2017 (CVE-2017-1000364). The vulnerability can be exploited to allows an unprivileged local user to gain root access to the server.

The Qualys' security...

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Topic: in KernelCare Blog


by / Thursday, 20 April 2017
KernelCare is now available in ISPmanager Lite

ISPsystem resellers can enable resale of KernelCare directly to their customers

In the beginning of April, ISPsystem has offered KernelCare for purchase directly from their control panel, and now it is also available for users of ISPmanager Lite. ISPmanager Lite provides a rich feature set for...

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by / Thursday, 13 April 2017
“Out with the old, in with the new” initiative continues - new customer support experience ahead

Post updated on April 25th, 2017

Dear CloudLinux Customer,

I would like to share with you another upgrade CloudLinux is making as part of the “Out with the old, in with the new” initiative.

First, a bit of background. For years, our helpdesk tool allowed us to handle tens of thousands of...

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Topic: in CloudLinux OS Blog KernelCare Blog


by / Wednesday, 05 April 2017
Endurance implemented rebootless updates with KernelCare

A few days ago, Endurance has announced that they have implemented KernelCare to keep their servers secure and limit interruptions. Endurance is a leading provider of cloud-based platform solutions, and they have deployed KernelCare rebootless update service on shared and dedicated web servers...

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by / Thursday, 30 March 2017
Issues caused by the latest KernelCare update and what we will do to ensure it never happens again

UPDATE: Mar 30 - 10am pacific timezone. 24h feed was updated with the same issue due to technician incorrectly removing "at" job. This has been fixed shortly, but some systems have been affected.

We want to apologize for the KernelCare incident that affected some of our customers yesterday....

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by / Wednesday, 29 March 2017
Issues caused by the latest KernelCare update

We’ve received reports that our latest patchset affected some CentOS/CloudLinux/OpenVZ 6 kernels. We’ve immediately rolled back the patch, have evaluated the issue and identified the cause to prevent issues in the future releases. Please accept our apologies and standby for additional...

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by / Wednesday, 29 March 2017
Major vulnerability CVE-2017-2647 found in Linux kernels that affects CentOS, RHEL, CloudLinux OS 6 & 7

A new major local privilege escalation vulnerability in the Linux kernel was just disclosed (see CVE-2017-2647). As reported, it’s a null pointer dereference vulnerability that can be triggered in keyring_search_iterator in keyring.c if type->match is NULL by an unprivileged local user. It is...

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Topic: in KernelCare Blog


by / Thursday, 09 March 2017
Major vulnerability CVE-2017-2636 found in Linux kernels that affects many distributions

A new major local privilege escalation vulnerability in the Linux kernel was disclosed on March 7th by Alexander Popov (see CVE-2017-2636). It is a race condition in drivers/tty/n_hdlc.c in the Linux kernel through 4.10.1 that allows local users to gain privileges or cause a denial of service...

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by / Saturday, 04 March 2017
CloudLinux CLN downtime Friday, March 10th, starting at 1:30 am EST

We will be performing planned maintenance for CLN from 1:30 am EST (6:30 am GMT) to 4:30 am EST (9:30 am GMT) on Friday, March 10th, 2017.

During that time you might experience issues with accessing CLN, registering new servers, converting servers to CloudLinux, registering new IP-based licenses...

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Topic: in CloudLinux OS Blog KernelCare Blog


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