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Kernel: Linux 4.18, New Flaw and Potential Back Door (Google/NSA)

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Linux
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Security
  • The Best Features Of The Linux 4.18 Kernel

    Following a one week delay, the Linux 4.18 kernel is set to be released this coming weekend. In case you forgot about the new features and improvements since the Linux 4.18 cycle kicked off back in June, here's a look back at some of the most prominent additions for this latest kernel version.

  • Linux kernel bug: TCP flaw lets remote attackers stall devices with tiny DoS attack

    Security researchers are warning Linux system users of a bug in the Linux kernel version 4.9 and up that could be used to hit systems with a denial-of-service attack on networking kit.

    The warning comes from Carnegie Mellon University's CERT/CC, which notes that newer versions of the Linux kernel can be "forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service (DoS)".

  • Speck Crypto Code Called For Removal From The Linux Kernel

    Now that Google will not be using the Speck crypto code for disk encryption on low-end Android devices but instead developing "HPolyC" as outlined in the aforelinked article, a plea has already been submitted to remove the current Speck code from the mainline Linux kernel.

    Following yesterday's mailing list announcement that Google has changed its mind on using Speck and instead investing in a new option, Linux developer Jason Donenfeld took the liberty of issuing a "request for comments" on removing the Speck crypto code. Donenfeld is the developer that's been working on WireGuard and the new Zinc crypto library.

More on SegmentSmack

  • SegmentSmack: TCP Flaw In Linux Kernel Could Trigger A Remote Denial Of Service

    The Linux kernel has been hit with a TCL flaw that was recently discovered by security researcher Juha-Matti Tilli. Assigned CVE-2018-5390, this flaw could be exploited by malicious actors to trigger a resource exhaustion attack using an available open port. This flaw, named SegmentSmack by Red Hat, affects the Linux kernel 4.9 or above.

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