Articles by KENNETH

USN-3420-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3420-1 18th September, 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 It was discovered that a buffer overflow existed in the Bluetooth stack ofthe Linux kernel when handling L2CAP configuration responses. A physicallyproximate attacker could use this to cause a denial of service (systemcrash). (CVE-2017-1000251) It was discovered that the Flash-Friendly File System (f2fs) implementationin the Linux kernel did not [ more… ]

USN-3419-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3419-1 18th September, 2017 linux, linux-raspi2 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Summary Several security issues were fixed in the Linux kernel. Software description linux – Linux kernel linux-raspi2 – Linux kernel for Raspberry Pi 2 Details It was discovered that a buffer overflow existed in the Bluetooth stack ofthe Linux kernel when handling L2CAP configuration responses. A physicallyproximate attacker could use this to cause a denial of service (systemcrash). (CVE-2017-1000251) It was discovered that a buffer overflow existed in the Broadcom FullMACWLAN driver in the Linux kernel. A local attacker could use this to cause adenial of service (system crash) or possibly execute arbitrary code.(CVE-2017-7541) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.04: linux-image-generic [ more… ]

USN-3419-2: Linux kernel (HWE) vulnerabilities Ubuntu Security Notice USN-3419-2 18th September, 2017 linux-hwe 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-hwe – Linux hardware enablement (HWE) kernel Details USN-3419-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04.This update provides the corresponding updates for the LinuxHardware Enablement (HWE) kernel from Ubuntu 17.04 for Ubuntu16.04 LTS. It was discovered that a buffer overflow existed in the Bluetooth stack ofthe Linux kernel when handling L2CAP configuration responses. A physicallyproximate attacker could use this to cause a denial of service (systemcrash). (CVE-2017-1000251) It was discovered that a buffer overflow existed in the Broadcom FullMACWLAN driver in the Linux kernel. A local attacker could use this to cause adenial of service (system crash) or [ more… ]

USN-3420-2: Linux kernel (Xenial HWE) vulnerabilities Ubuntu Security Notice USN-3420-2 18th September, 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-3420-1 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 buffer overflow existed in the Bluetooth stack ofthe Linux kernel when handling L2CAP configuration responses. A physicallyproximate attacker could use this to cause a denial of service (systemcrash). (CVE-2017-1000251) It was discovered that the Flash-Friendly File System (f2fs) implementationin the Linux kernel did not properly validate superblock metadata. A localattacker could use this to [ more… ]

USN-3422-2: Linux kernel (Trusty HWE) vulnerabilities Ubuntu Security Notice USN-3422-2 18th September, 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-3422-1 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 LTS. It was discovered that a buffer overflow existed in the Bluetooth stack ofthe Linux kernel when handling L2CAP configuration responses. A physicallyproximate attacker could use this to cause a denial of service (systemcrash). (CVE-2017-1000251) It was discovered that the asynchronous I/O (aio) subsystem of the Linuxkernel did not properly set permissions on aio memory mappings in somesituations. An [ more… ]