Articles by KENNETH

USN-4368-1: Linux kernel vulnerabilities linux-gke-5.0, linux-oem-osp1 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.04 LTS Summary Several security issues were fixed in the Linux kernel. Software Description linux-gke-5.0 – Linux kernel for Google Container Engine (GKE) systems linux-oem-osp1 – Linux kernel for OEM systems Details Tristan Madani discovered that the file locking implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service or expose sensitive information. (CVE-2019-19769) It was discovered that the Serial CAN interface driver in the Linux kernel did not properly initialize data. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-11494) It was discovered that the linux kernel did not properly validate certain mount options to the tmpfs virtual memory file system. A local attacker [ more… ]

USN-4367-1: Linux kernel vulnerabilities linux, linux-aws, linux-gcp, linux-kvm, linux-oracle, linux-riscv vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 20.04 LTS Summary Several security issues were fixed in the Linux kernel. Software Description linux – Linux kernel linux-aws – Linux kernel for Amazon Web Services (AWS) systems linux-gcp – Linux kernel for Google Cloud Platform (GCP) systems linux-kvm – Linux kernel for cloud environments linux-oracle – Linux kernel for Oracle Cloud systems linux-riscv – Linux kernel for RISC-V systems Details It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block was marked dirty in some situations. An attacker could use this to specially craft a file system image that, when unmounted, could cause a denial of service (system crash). (CVE-2019-19377) It was discovered that the linux kernel did [ more… ]