[월:] 2019년 06월

USN-4032-1: Firefox vulnerability firefox vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.10 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Summary A sandbox escape was discovered in Firefox. Software Description firefox – Mozilla Open Source web browser Details It was discovered that a sandboxed child process could open arbitrary web content in the parent process via the Prompt:Open IPC message. When combined with another vulnerability, an attacker could potentially exploit this to execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 firefox – 67.0.4+build1-0ubuntu0.19.04.1 Ubuntu 18.10 firefox – 67.0.4+build1-0ubuntu0.18.10.1 Ubuntu 18.04 LTS firefox – 67.0.4+build1-0ubuntu0.18.04.1 Ubuntu 16.04 LTS firefox – 67.0.4+build1-0ubuntu0.16.04.1 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. After a standard system update you need to restart Firefox to make [ more… ]

USN-4031-1: Linux kernel vulnerability linux, linux-hwe vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.10 Ubuntu 18.04 LTS Summary 64-Bit PowerPC systems could be made to expose sensitive information. Software Description linux – Linux kernel linux-hwe – Linux hardware enablement (HWE) kernel Details It was discovered that the Linux kernel did not properly separate certain memory mappings when creating new userspace processes on 64-bit Power (ppc64el) systems. A local attacker could use this to access memory contents or cause memory corruption of other processes on the system. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 linux-image-5.0.0-19-generic – 5.0.0-19.20 linux-image-generic – 5.0.0.19.20 linux-image-virtual – 5.0.0.19.20 Ubuntu 18.10 linux-image-4.18.0-24-generic – 4.18.0-24.25 linux-image-generic – 4.18.0.24.25 linux-image-powerpc-e500mc – 4.18.0.24.25 linux-image-powerpc-smp – 4.18.0.24.25 linux-image-powerpc64-emb – 4.18.0.24.25 linux-image-powerpc64-smp – [ more… ]