Ubuntu security

USN-4008-3: Linux kernel (Xenial HWE) vulnerabilities linux-lts-xenial, linux-aws vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 ESM Summary Several security issues were fixed in the Linux kernel. Software Description linux-aws – Linux kernel for Amazon Web Services (AWS) systems linux-lts-xenial – Linux hardware enablement kernel from Xenial for Trusty Details USN-4008-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. Robert Święcki discovered that the Linux kernel did not properly apply Address Space Layout Randomization (ASLR) in some situations for setuid elf binaries. A local attacker could use this to improve the chances of exploiting an existing vulnerability in a setuid elf binary. (CVE-2019-11190) It was discovered that a null pointer dereference [ more… ]

USN-3991-2: Firefox regression firefox regression 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 USN-3991-1 caused a regression in Firefox. Software Description firefox – Mozilla Open Source web browser Details USN-3991-1 fixed vulnerabilities in Firefox. The update caused a regression which resulted in issues when upgrading between Ubuntu releases. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, spoof the browser UI, trick the user in to launching local executable binaries, obtain sensitive information, conduct cross-site scripting (XSS) attacks, or execute arbitrary code. (CVE-2019-11691, CVE-2019-11692, CVE-2019-11693, CVE-2019-11695, CVE-2019-11696, CVE-2019-11699, CVE-2019-11701, CVE-2019-7317, CVE-2019-9800, [ more… ]

USN-4011-2: Jinja2 vulnerabilities jinja2 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 ESM Ubuntu 12.04 ESM Summary Several security issues were fixed in Jinja2. Software Description jinja2 – small but fast and easy to use stand-alone template engine Details USN-4011-1 fixed several vulnerabilities in Jinja2. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: Olivier Dony discovered that Jinja incorrectly handled str.format. An attacker could possibly use this issue to escape the sandbox. (CVE-2016-10745) Brian Welch discovered that Jinja incorrectly handled str.format_map. An attacker could possibly use this issue to escape the sandbox. (CVE-2019-10906) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM python-jinja2 – 2.7.2-2ubuntu0.1~esm1 python3-jinja2 – 2.7.2-2ubuntu0.1~esm1 Ubuntu 12.04 ESM python-jinja2 – 2.6-1ubuntu0.2 python3-jinja2 [ more… ]

USN-4011-1: Jinja2 vulnerabilities jinja2 vulnerabilities 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 Several security issues were fixed in Jinja2. Software Description jinja2 – small but fast and easy to use stand-alone template engine Details Olivier Dony discovered that Jinja incorrectly handled str.format. An attacker could possibly use this issue to escape the sandbox. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-10745) Brian Welch discovered that Jinja incorrectly handled str.format_map. An attacker could possibly use this issue to escape the sandbox. (CVE-2019-10906) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 python-jinja2 – 2.10-1ubuntu0.19.04.1 python3-jinja2 – 2.10-1ubuntu0.19.04.1 Ubuntu 18.10 python-jinja2 – 2.10-1ubuntu0.18.10.1 python3-jinja2 – 2.10-1ubuntu0.18.10.1 Ubuntu 18.04 LTS python-jinja2 – 2.10-1ubuntu0.18.04.1 python3-jinja2 – 2.10-1ubuntu0.18.04.1 Ubuntu 16.04 LTS [ more… ]

USN-4008-2: AppArmor update apparmor update A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Summary Several policy updates were made for running under the recently updated Linux kernel. Software Description apparmor – Linux security system Details USN-4008-1 fixed multiple security issues in the Linux kernel. This update provides the corresponding changes to AppArmor policy for correctly operating under the Linux kernel with fixes for CVE-2019-11190. Without these changes, some profile transitions may be unintentionally denied due to missing mmap (’m’) rules. Original advisory details: Robert Święcki discovered that the Linux kernel did not properly apply Address Space Layout Randomization (ASLR) in some situations for setuid elf binaries. A local attacker could use this to improve the chances of exploiting an existing vulnerability in a setuid elf binary. (CVE-2019-11190) It was discovered that a null pointer [ more… ]