Linux Kernel Bugs in Ubuntu Let Hackers Launch DOS Attack

Several security vulnerabilities were recently addressed by Canonical in both Graphviz and the Linux kernel of Ubuntu.

Recent discoveries include null pointer dereference vulnerabilities in Graphviz and improper handling of indirect branch prediction isolation between L1 and L2 VMs in the KVM VMX implementation of the Linux kernel.

Affected Packages

Here below, we have mentioned all the affected packages:-

  • graphviz – rich set of graph drawing tools
  • linux – Linux kernel
  • linux-oem-6.0 – Linux kernel for OEM systems
  • linux-aws – Linux kernel for Amazon Web Services (AWS) systems
  • linux-azure – Linux kernel for Microsoft Azure Cloud systems
  • linux-gcp Linux kernel for Google Cloud Platform (GCP) systems
  • linux-ibm – Linux kernel for IBM cloud systems
  • linux-kvm – Linux kernel for cloud environments
  • linux-lowlatency – Linux low latency kernel
  • linux-oracle – Linux kernel for Oracle Cloud systems
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