SECURITY

USN-3820-2: Linux kernel (HWE) vulnerabilities linux-hwe, linux-azure, linux-gcp 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-azure – Linux kernel for Microsoft Azure Cloud systems linux-gcp – Linux kernel for Google Cloud Platform (GCP) systems linux-hwe – Linux hardware enablement (HWE) kernel Details USN-3820-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. Felix Wilhelm discovered that the Xen netback driver in the Linux kernel did not properly perform input validation in some situations. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-15471) It was discovered that the generic [ more… ]

USN-3819-1: Linux kernel vulnerability linux, linux-aws, linux-gcp, linux-kvm, linux-raspi2 vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.10 Summary The system could be made to crash or run programs as an administrator. Software Description linux – Linux kernel linux-aws – Linux kernel for Amazon Web Services (AWS) systems linux-gcp – Linux kernel for Google Cloud Platform (GCP) systems linux-kvm – Linux kernel for cloud environments linux-raspi2 – Linux kernel for Raspberry Pi 2 Details Felix Wilhelm discovered that the Xen netback driver in the Linux kernel did not properly perform input validation in some situations. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10 linux-image-4.18.0-1003-gcp – 4.18.0-1003.4 linux-image-4.18.0-1004-aws [ more… ]

USN-3820-1: Linux kernel vulnerabilities linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oem, linux-raspi2 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.04 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-azure – Linux kernel for Microsoft Azure Cloud systems linux-gcp – Linux kernel for Google Cloud Platform (GCP) systems linux-kvm – Linux kernel for cloud environments linux-oem – Linux kernel for OEM processors linux-raspi2 – Linux kernel for Raspberry Pi 2 Details Felix Wilhelm discovered that the Xen netback driver in the Linux kernel did not properly perform input validation in some situations. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-15471) It was discovered that the generic [ more… ]

USN-3818-1: PostgreSQL vulnerability postgresql-10 vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.10 Ubuntu 18.04 LTS Summary PostgreSQL could be made to run SQL statements as the administrator. Software Description postgresql-10 – Object-relational SQL database Details It was discovered that PostgreSQL incorrectly handled certain trigger definitions when running pg_upgrade or pg_dump. A remote attacker could possibly use this issue to execute arbitrary SQL statements with superuser privileges. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10 postgresql-10 – 10.6-0ubuntu0.18.10.1 Ubuntu 18.04 LTS postgresql-10 – 10.6-0ubuntu0.18.04.1 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. This update uses a new upstream release, which includes additional bug fixes. After a standard system update you need to restart PostgreSQL to make all the necessary changes. References CVE-2018-16850 Source: USN-3818-1: [ more… ]