Articles by KENNETH

USN-3404-1: Linux kernel vulnerability Ubuntu Security Notice USN-3404-1 28th August, 2017 linux, linux-raspi2 vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Summary The system could be made to crash under certain conditions. Software description linux – Linux kernel linux-raspi2 – Linux kernel for Raspberry Pi 2 Details A reference count bug was discovered in the Linux kernel ipx protocolstack. A local attacker could exploit this flaw to cause a denial ofservice or possibly other unspecified problems. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.04: linux-image-4.10.0-33-generic 4.10.0-33.37 linux-image-generic-lpae 4.10.0.33.33 linux-image-4.10.0-33-lowlatency 4.10.0-33.37 linux-image-4.10.0-1016-raspi2 4.10.0-1016.19 linux-image-generic 4.10.0.33.33 linux-image-4.10.0-33-generic-lpae 4.10.0-33.37 linux-image-lowlatency 4.10.0.33.33 linux-image-raspi2 4.10.0.1016.17 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 [ more… ]

USN-3405-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3405-1 28th August, 2017 linux, linux-aws, linux-gke, 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-raspi2 – Linux kernel for Raspberry Pi 2 linux-snapdragon – Linux kernel for Snapdragon processors Details It was discovered that a use-after-free vulnerability existed in the POSIXmessage queue implementation in the Linux kernel. A local attacker coulduse this to cause a denial of service (system crash) or possibly executearbitrary code. (CVE-2017-11176) Huang Weller discovered that the ext4 filesystem implementation in theLinux kernel mishandled a needs-flushing-before-commit list. A localattacker could use this to expose [ more… ]

USN-3406-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3406-1 28th August, 2017 linux vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 LTS Summary Several security issues were fixed in the Linux kernel. Software description linux – Linux kernel Details It was discovered that an out of bounds read vulnerability existed in theassociative array implementation in the Linux kernel. A local attackercould use this to cause a denial of service (system crash) or exposesensitive information. (CVE-2016-7914) It was discovered that a NULL pointer dereference existed in the DirectRendering Manager (DRM) driver for VMWare devices in the Linux kernel. Alocal attacker could use this to cause a denial of service (system crash).(CVE-2017-7261) It was discovered that the USB Cypress HID drivers for the Linux kernel didnot properly validate reported information from the device. An attackerwith physical access [ more… ]

USN-3404-2: Linux kernel (HWE) vulnerability Ubuntu Security Notice USN-3404-2 28th August, 2017 linux-hwe 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-hwe – Linux hardware enablement (HWE) kernel Details USN-3404-1 fixed a vulnerability in the Linux kernel for Ubuntu 17.04.This update provides the corresponding updates for the Linux HardwareEnablement (HWE) kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. A reference count bug was discovered in the Linux kernel ipx protocolstack. A local attacker could exploit this flaw to cause a denial ofservice or possibly other unspecified problems. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 16.04 LTS: linux-image-4.10.0-33-generic 4.10.0-33.37~16.04.1 linux-image-4.10.0-33-lowlatency 4.10.0-33.37~16.04.1 linux-image-generic-hwe-16.04 4.10.0.33.35 linux-image-lowlatency-hwe-16.04 4.10.0.33.35 linux-image-4.10.0-33-generic-lpae 4.10.0-33.37~16.04.1 linux-image-generic-lpae-hwe-16.04 4.10.0.33.35 To update [ more… ]

USN-3405-2: Linux kernel (Xenial HWE) vulnerabilities Ubuntu Security Notice USN-3405-2 28th August, 2017 linux-lts-xenial vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 LTS Summary Several security issues were fixed in the Linux kernel. Software description linux-lts-xenial – Linux hardware enablement kernel from Xenial for Trusty Details USN-3405-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04LTS. This update provides the corresponding updates for the LinuxHardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu14.04 LTS. It was discovered that a use-after-free vulnerability existed in the POSIXmessage queue implementation in the Linux kernel. A local attacker coulduse this to cause a denial of service (system crash) or possibly executearbitrary code. (CVE-2017-11176) Huang Weller discovered that the ext4 filesystem implementation in theLinux kernel mishandled a needs-flushing-before-commit list. A localattacker could use this to expose sensitive information. [ more… ]