CloudLinux OS Blog

Beta: CloudLinux 7 and CloudLinux 6 Hybrid kernel updated

Beta: CloudLinux 7 and CloudLinux 6 Hybrid kernel updated

CloudLinux 7 and CloudLinux 6 Hybrid kernel version 3.10.0-714.10.2.lve1.5.19.3 is now available for download from our updates-testing repository.

Changelog:

  • CLKRN-323: a flaw named SegmentSmack was found in the way the Linux kernel handled specially crafted TCP packets. A remote attacker could use this flaw to trigger time and calculation expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() functions by sending specially modified packets within ongoing TCP sessions which could lead to a CPU saturation and hence a denial of service on the system. Maintaining the denial of service condition requires continuous two-way TCP sessions to a reachable open port, thus the attacks cannot be performed using spoofed IP addresses.

To install a new kernel, please use the following command:

CloudLinux 7:

yum install kernel-3.10.0-714.10.2.lve1.5.19.3.el7 --enablerepo=cloudlinux-updates-testing

CloudLinux 6 Hybrid:

yum install kernel-3.10.0-714.10.2.lve1.5.19.3.el6h --enablerepo=cloudlinux-hybrid-testing

Topic: CloudLinux OS Blog , Tags: #beta, #hybrid, #kernel-cl6, #kernel-cl7,

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Guest, Monday, 15 October 2018

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