Vulnerabildiad in the Linux kernel, solution path

first_main_article” class=”article readability=”42″>Our fellow MuySeguridad

just released the news right now: A vulnerability has been discovered, and an exploit to take advantage of it-that affects Linux kernel versions the 2.6.37 to 3.8.9 .

6619 bugVulnerabildiad computer in the Linux kernel, solution path

Apparently it all started last April, with the addition of patching the kernel that fixed one thing and “uncovered” by . The recent emergence of an exploit confirmed the fears and the incidence has been marked with a report of vulnerability and exploit publication of yore.

Right now, here’s the thing: “the security team Ubuntu has released an update to close this vulnerability on Ubuntu 13.04, 12.10 and 12.04 LTS, while maintaining Debian patch Safety in your repository, waiting to free for all users of the newly released Debian 7. Meanwhile, Red Hat Enterprise Linux (RHEL) versions 4 and 5 are not affected, yes RHEL 6, but has not yet released an update, they have published some instructions to follow until it comes. “

indicates the original story, it’s about time that most affected distributions have an update to fix this hole should be noted, can only be exploited locally (hey, nobody you pull your hair out).

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May 16, 2013 | admin | Tags: , , , , | Comments Closed

Security hole discovered in the Linux kernel

class=”article first_main_article” readability=”41″>According

published MuySeguridad our fellow last night, has discovered a vulnerability in the kernel Linux by which an attacker could gain root access . Affected versions are Linux 3.3 onwards .

computer security hole discovered bug in the Linux kernel

Apparently, the hole is in the kernel networking code , and has not been heard of him until this past weekend appeared online an exploit with which “take advantage “.

Among

vulnerable to this flaw distributions are Fedora 17 and Ubuntu 18 or Ubuntu 12.10 and 12.04.2. In contrast, Red Hat and SUSE Linux have already patched their kernels . The solution for the rest will surely come in the coming days as a patch, because the ultimate solution will have to wait until the release of Linux 3.9.

As a side note, in the original article there are two very significant comments. The first vulnerability blames open source Linux , I understand that under the reasoning that to be accessible to everyone, you can find and exploit bugs.

The second comment suggests that precisely because Linux open source has been discovered so quickly the problem . Although the kernel 3.3 is launched almost a year ago.

What is your opinion?

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February 26, 2013 | admin | Tags: , , , , | Comments Closed

Farewell to 386 processor support in the Linux kernel

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Ingo Molnar, one of the main developers of the Linux kernel, has disabled processors support Intel 386 began precisely with the history of this kernel and operating system that was created from him.

Goodbye Intel 386 processor support in the Linux kernel 386

i386 32-bit architecture that was presented in 1985 was one of the most popular among users, and indeed the 80386 continued to be made until relatively recently, in September 2007.

kernel developers have decided that it was time to remove support for these processors, and specifically to the old 386-386-DX and SX. This improves the duty cycle in the core , as in the words of Molnar, “ its complexity has caused extra work when we wanted to make changes to the SMP support primitives for years “.

That means

as noted Molnar, your old PCs with processors 386 DX33 91 year may not work with newer kernels from now. Linus Torvalds himself is fully agreed with the decision: “‘m not sentimental. It’s a relief “.

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December 13, 2012 | admin | Tags: , , , , | Comments Closed

The Linux kernel 3.7 is now available

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Linus Torvalds has announced the availability of the Linux kernel 3.7 , a new kernel version of our favorite operating system is one of the most ambitious of recent times for changes and improvements. And it comes just 10 weeks after the last version, the Linux kernel 3.6 that was launched on October 1, 2012.

The Linux kernel 3.7 is now available

Among the new highlights are the technology support Network Address Translation (NAT) for IPv6 and the inclusion of important changes in the drivers for the graphics hardware by Intel and NVIDIA, as will allow future versions of these devices offer drivers more robust and better performing.

As noted in The H Open, the new kernel gives support the new set of 64-bit ARM instructions and also supports ARM platform, making it 32-bit kernel can be ARM processors used in different:

changes are much broader and depth is something that escapes the scope of this article, but you can check the news in a report that reviews the major developments in The H Open and thorough review as they make themselves into 5 parts:

    • Filesystem and storage
    1. Networks
    2. Infrastructure
    3. Drivers
    4. CPU and platform code

    And as always, you can access all these improvements downloading the source code of Linux kernel 3.7 from the official development at kernel.org.

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    Tags: 64-bit, ARM, drivers, IPv6, Kernel, kernel 3.7, Linux kernel, Linux kernel 3.7, Linus Torvalds, NAT, core, NVIDIA Intel

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    December 11, 2012 | admin | Tags: , , | Comments Closed

    The Linux 3.4 kernel will be kept for 2 years

    class=”article first_main_article” readability=”39″>Greg Kroah-Hartman

    plans to keep Linux kernel 3.4, which was released in May, for at least two years . He had already described this nucleus as stable, but this announcement makes the Linux 3.4 kernel now holds the long-range kernel support.

    linux34 kernel The Linux 3.4 kernel will be kept for two years

    programmer, responsible for stable nuclei, also said Linux 3.0 kernel also enjoys this rating will remain maintained for at least another year . The Linux 3.5 kernel will be a traditional kernel (no long support), and will be maintained as stable until the release of Linux kernel 3.6.1.

    As indicated in The H Open, this announcement brings the number of cores with extended support period grow to 7. The oldest of them is the kernel 2.6.27, maintained by Willy Tarreau , who release new versions every few months. Good news for demonstrating the good health of these nuclei.

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    August 21, 2012 | admin | Tags: , , , | Comments Closed

    OpenSUSE 12.2 Beta, now with the Linux 3.4 kernel

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    responsible for this project have announced the availability of openSUSE 12.2 Beta , the only version of this type that are scheduled in their particular road map and that is late, it was envisaged that would to appear on May 24 last, by some problems with the build service.

    opensuse openSUSE 12.2 beta 2 December Beta, and with the Linux kernel 3.4

    openSUSE 12.2 Beta

    find as a great novelty Linux 3.4 kernel presence which was published last month, but it also gives us the option to opt for GNOME or KDE 3.4 as SC 4.8.3 (the latter is chosen by default if we do not say anything) and desktop environments.

    No major developments

    apart from those already mentioned, since it is a version in which mainly have focused on correcting problems of previous editions. In the coming weeks we will see as they arrive, if all goes as it should-two release candidates of openSUSE 12.2, after which final version will appear July 11, 2012 .

    You can download

    distribution from the official website of the project both for machines 32 and 64 bits. If you find errors or problems of any kind, not fail to contact the team reporting the same by following the instructions in this link.

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    June 4, 2012 | admin | Tags: , , , , | Comments Closed

    The Linux 3.4 kernel now available

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    Linus Torvalds has announced the availability of the Linux kernel 3.4 just two months after the release of the previous version.

    linux34 kernel Linux 3.4 kernel is now available

    In this new version included significant improvements in the support of very important components of latest batch, as the code for the impressive NVIDIA GeForce GTX 680 (as currently the most advanced graphics) and new AMD Trinity , the company’s bid to compete with Ivy Bridge.

    As noted in The H Open has implemented the new x32 ABI makes “ delivering the benefits of 64-bit x86 CPUs while avoiding the overhead of 64-bit code , which is especially interesting in embedded processors “.

    As we usually do with each new kernel version, it is best if you want to take cognizance of all the news you call on the number of items that have been developed at The H Open and detailing the changes in infrastructure, file systems, and drivers. And of course, now you can download the Linux kernel 3.4 and compile it for your respective distributions .

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    May 21, 2012 | admin | Tags: , , | Comments Closed

    The Linux 2.4 kernel versions will have no additional

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    mailing list Linux kernel Willy Tarreau announced that there will be no additional versions of the Linux 2.4 kernel . Tarreau, which is responsible for maintaining this core, has indicated that there is “little people” who make use of that version.

    linux24 kernel Linux 2.4 kernel will have no additional versions

    show at The H Open, which also reveals that these users will now have better service with a central repository in Git to collect errors and corrections, and indeed that repository is already created for all those users.

    Linux 2.4 kernel appeared as far back as 11 years , and this was followed by the 2.6 kernel which appeared three years later. With the announcement of Tarreau maintaining the Linux 2.4 kernel is completely stopped, so the version 2.4.37.11 of last December will be the last we’ll see in this regard.

    Linux 2.4 is used mainly in embedded systems, but its use in desktops and servers is very rare. Tarreau will now maintain the long-haul versions of the Linux 2.6.27 kernel and 2.6.32 , leaving Greg Kroah-Hartman to work for version 3.0 of the core.

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    April 10, 2012 | admin | Tags: , , , | Comments Closed

    Development begins on Linux 3.4 kernel

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    Two weeks after the Linux kernel 3.3 hit the market, Linus Torvalds has announced the availability of first release candidate of Linux 3.4 .

    linux34 kernel starts rc1 Linux 3.4 kernel development

    As explained in The H Open, this step indicates that phase is complete fusion of code that Torvalds integrates the most important improvements for the new kernel version and WIN about seven-eighths of all changes .

    Among the new features that are expected in the final version of the kernel, which will probably appear in late May, is the support in the kernel of the x32 ABI , which allow programs compiled for this ABI use the records and data paths of 64-bit processors but with 32-bit pointers.

    original article you will find more details on this path that has already begun and in a few months will result in the output of a new kernel version of our favorite operating system.

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    April 4, 2012 | admin | Tags: , , , | Comments Closed

    Linux Kernel 3.3 Available: welcome back, Android

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    Yesterday late in the afternoon Linus Torvalds announced in the traditional mailing list LKML.org the availability of the Linux kernel 3.3 , after some minor revisions that have come to decide the most responsible for this development to confirm the start of a new version of the cornerstone of any GNU / Linux.

    linux33 kernel Linux Kernel 3.3 Available: welcome back, Android

    Linus

    not usually have anything special in the ad, but where they do two media is always recommended in MuyLinux when analyzing all the novelties of the new kernel . First, kernelnewbies, where you have a look especially detailed and fairly technical background. Second, more interesting for most Linux users without much knowledge of development, is the fantastic story that published in The H Open and breaks down the news in various sections.

    Although there is obviously much more significant improvements for everyday users, but the most striking is the return to the Linux kernel code of Android, at least partially, with several subsystems and “fused” ( merged ) with the usual code used in our distributions, as explained in good detail in LWN article. It is a first step, yes, but an important step .

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    March 19, 2012 | admin | Tags: , , , , , | Comments Closed
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