Articles by KENNETH

USN-3443-3: Linux kernel (GCP) vulnerability Ubuntu Security Notice USN-3443-3 11th October, 2017 linux-gcp vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Summary The system could be made to crash under certain conditions. Software description linux-gcp – Linux kernel for Google Cloud Platform (GCP) systems Details Andrey Konovalov discovered that a divide-by-zero error existed in the TCPstack implementation in the Linux kernel. A local attacker could use thisto cause a denial of service (system crash). (CVE-2017-14106) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 16.04 LTS: linux-image-gcp 4.10.0.1007.9 linux-image-4.10.0-1007-gcp 4.10.0-1007.7 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. After a standard system update you need to reboot your computer to makeall the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates [ more… ]

USN-3445-2: Linux kernel (Trusty HWE) vulnerabilities Ubuntu Security Notice USN-3445-2 11th October, 2017 linux-lts-trusty vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary Several security issues were fixed in the Linux kernel. Software description linux-lts-trusty – Linux hardware enablement kernel from Trusty for Precise ESM Details USN-3445-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04LTS. This update provides the corresponding updates for the LinuxHardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu12.04 ESM. Eyal Itkin discovered that the IP over IEEE 1394 (FireWire) implementationin the Linux kernel contained a buffer overflow when handling fragmentedpackets. A remote attacker could use this to possibly execute arbitrarycode with administrative privileges. (CVE-2016-8633) Andrey Konovalov discovered that a divide-by-zero error existed in the TCPstack implementation in the Linux kernel. A local attacker could use thisto cause [ more… ]

USN-3444-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3444-1 10th October, 2017 linux, linux-aws, linux-gke, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 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-gke – Linux kernel for Google Container Engine (GKE) systems linux-kvm – Linux kernel for cloud environments linux-raspi2 – Linux kernel for Raspberry Pi 2 linux-snapdragon – Linux kernel for Snapdragon processors Details Jan H. Schönherr discovered that the Xen subsystem did not properly handleblock IO merges correctly in some situations. An attacker in a guest vmcould use this to cause a denial of service (host crash) or possibly gainadministrative privileges in the host. (CVE-2017-12134) Andrey Konovalov discovered that a divide-by-zero error [ more… ]