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Security Leftovers

  • Security updates for Monday

    Security updates have been issued by CentOS (SDL), Debian (htmldoc, librabbitmq, nss, openjdk-7, openslp-dfsg, and phpmyadmin), Fedora (chromium, community-mysql, kernel, libidn2, oniguruma, proftpd, and rabbitmq-server), Mageia (ansible, clamav, evince, firefox, graphicsmagick, icu, libcryptopp, libtasn1, libtiff, libvncserver, libvpx, lz4, nss, openexr, openjpeg2, openssl, phpmyadmin, python-psutil, python-twisted, QT, sdl2_image, SDL_image, sysstat, thunderbird, and tnef), Oracle (firefox), Red Hat (java-1.8.0-ibm and nss), Scientific Linux (firefox and kernel), SUSE (kernel), and Ubuntu (nss).

  • Exploiting a Buffer Overflow Vulnerability

    Buffer overflow flaws can be present in both the web server and application server products that serve the static and dynamic portions of a site, or in the web application itself. Buffer overflows found in commonly-used server products are likely to become widely known and can pose a significant risk to users of these products.

  • Securing your Kubernetes cluster with Webhook and Keystone

    As we move into complex K8s cluster deployments, we need to consider a robust user and role management for our clusters. The native K8s user management is primitive and vulnerable to access and DOS attacks.

First Look: Ubuntu Cinnamon, Beautiful Remix Worthy of Becoming Official Flavor

As we reported over the weekend, Ubuntu Cinnamon Remix has seen its first ever release as an unofficial Ubuntu Cinnamon flavor featuring the beautiful and modern Cinnamon desktop environment, which is developed and maintained by the developers of the Linux Mint distribution. To make things clear, Ubuntu Cinnamon Remix is called a "remix" because it's not yet an official flavor recognized by Canonical, but we believe it has all the odds to become an official Ubuntu flavor. However, this doesn't mean you won't get all the benefits of Ubuntu. Read more

New Linux Kernel Update for Red Hat Enterprise Linux 7 & CentOS 7 Fixes Two Bugs

The new Linux kernel update, which is available for Red Hat Enterprise Linux 7 and CentOS Linux 7 systems, is only a bugfix release, not a security update, addressing a bug that made applications consume the entire allocated CPU quota, as well as to backport the "sched: Fix race between task_group and sched_task_group" fix. Users are advised to update their kernel packages in all the supported systems (see below for details) to kernel-3.10.0-1062.9.1.el7.x86_64.rpm and related packages, all of which are available to install for free from the stable software repositories of all supported Red Hat Enterprise Linux 7 operating system variants and CentOS Linux 7. Read more

New, fully working Ubuntu Linux images now available for Raspberry Pi

While most Raspberry Pi owners opt for Raspbian as their operating system, the tiny barebones board can run a number of other Linux distros, including Ubuntu. There was a major problem with the previous Ubuntu images though -- a kernel bug prevented USB ports from working on the 4GB RAM model of the Raspberry Pi 4. A temporary workaround was proposed, but Canonical has finally fixed the flaw, and made updated 32 and 64-bit images of Ubuntu available for the Raspberry Pi 2, 3 and 4, which you can download now. Read more