[월:] 2017년 05월

USN-3282-2: FreeType vulnerabilities Ubuntu Security Notice USN-3282-2 16th May, 2017 FreeType vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary FreeType could be made to crash or run programs if it opened a specially crafted font file. Software description freetype – FreeType 2 is a font engine library Details It was discovered that FreeType did not correctly handle certain malformedfont files. If a user were tricked into using a specially crafted fontfile, a remote attacker could cause FreeType to crash, resulting in adenial of service, or possibly execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 12.04 LTS: libfreetype6 2.4.8-1ubuntu2.6 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. After a standard system update you need to restart your session to makeall [ more… ]

USN-3294-1: Bash vulnerabilities Ubuntu Security Notice USN-3294-1 17th May, 2017 bash vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Ubuntu 16.10 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Several security issues were fixed in Bash. Software description bash – GNU Bourne Again SHell Details Bernd Dietzel discovered that Bash incorrectly expanded the hostname whendisplaying the prompt. If a remote attacker were able to modify a hostname,this flaw could be exploited to execute arbitrary code. This issue onlyaffected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10.(CVE-2016-0634) It was discovered that Bash incorrectly handled the SHELLOPTS and PS4environment variables. A local attacker could use this issue to executearbitrary code with root privileges. This issue only affected Ubuntu 14.04LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7543) It was discovered that Bash incorrectly handled the popd command. [ more… ]

USN-3291-2: Linux kernel vulnerabilities Ubuntu Security Notice USN-3291-2 17th May, 2017 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 kernel. Software description 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 USN-3291-1 fixed vulnerabilities in the generic Linux kernel.This update provides the corresponding updates for the Linux kernelbuilt for specific processors and cloud environments. Dmitry Vyukov discovered that the generic SCSI (sg) subsystem in the Linuxkernel contained a stack-based buffer overflow. A local attacker withaccess to an sg device could use this to cause a denial of service (systemcrash) or possibly execute arbitrary code. [ more… ]

USN-3291-3: Linux kernel (Xenial HWE) vulnerabilities Ubuntu Security Notice USN-3291-3 17th May, 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 kernel. Software description linux-lts-xenial – Linux hardware enablement kernel from Xenial for Trusty Details USN-3291-1 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. Dmitry Vyukov discovered that the generic SCSI (sg) subsystem in the Linuxkernel contained a stack-based buffer overflow. A local attacker withaccess to an sg device could use this to cause a denial of service (systemcrash) or possibly execute arbitrary code. (CVE-2017-7187) It was discovered that a NULL pointer dereference existed in the DirectRendering Manager (DRM) driver for VMWare devices in [ more… ]