Debian: DSA-3128-1: linux security update

    Date15 Jan 2015
    CategoryDebian
    41
    Posted ByLinuxSecurity Advisories
    Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or information leaks. CVE-2013-6885
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-3128-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                      Salvatore Bonaccorso
    January 15, 2015                       http://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : linux
    CVE ID         : CVE-2013-6885 CVE-2014-8133 CVE-2014-9419 CVE-2014-9529 
                     CVE-2014-9584
    
    Several vulnerabilities have been discovered in the Linux kernel that
    may lead to a denial of service or information leaks.
    
    CVE-2013-6885
    
        It was discovered that under specific circumstances, a combination
        of write operations to write-combined memory and locked CPU
        instructions may cause a core hang on AMD 16h 00h through 0Fh
        processors. A local user can use this flaw to mount a denial of
        service (system hang) via a crafted application.
    
        For more information please refer to the AMD CPU erratum 793 in
        http://support.amd.com/TechDocs/51810_16h_00h-0Fh_Rev_Guide.pdf
    
    CVE-2014-8133
    
        It was found that the espfix funcionality can be bypassed by
        installing a 16-bit RW data segment into GDT instead of LDT (which
        espfix checks for) and using it for stack. A local unprivileged user
        could potentially use this flaw to leak kernel stack addresses and
        thus allowing to bypass the ASLR protection mechanism.
    
    CVE-2014-9419
    
        It was found that on Linux kernels compiled with the 32 bit
        interfaces (CONFIG_X86_32) a malicious user program can do a
        partial ASLR bypass through TLS base addresses leak when attacking
        other programs.
    
    CVE-2014-9529
    
        It was discovered that the Linux kernel is affected by a race
        condition flaw when doing key garbage collection, allowing local
        users to cause a denial of service (memory corruption or panic).
    
    CVE-2014-9584
    
        It was found that the Linux kernel does not validate a length value
        in the Extensions Reference (ER) System Use Field, which allows
        local users to obtain sensitive information from kernel memory via a
        crafted iso9660 image.
    
    For the stable distribution (wheezy), these problems have been fixed in
    version 3.2.65-1+deb7u1. Additionally this update fixes a suspend/resume
    regression introduced with 3.2.65.
    
    For the upcoming stable distribution (jessie) and the unstable
    distribution (sid), these problems will be fixed soon.
    
    We recommend that you upgrade your linux packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    
    You are not authorised to post comments.

    Comments powered by CComment

    LinuxSecurity Poll

    What do you think of the articles on LinuxSecurity?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/24-what-do-you-think-of-the-quality-of-the-articles-on-linuxsecurity?task=poll.vote&format=json
    24
    radio
    [{"id":"87","title":"Excellent, don't change a thing!","votes":"15","type":"x","order":"1","pct":53.57,"resources":[]},{"id":"88","title":"Should be more technical","votes":"4","type":"x","order":"2","pct":14.29,"resources":[]},{"id":"89","title":"Should include more HOWTOs","votes":"9","type":"x","order":"3","pct":32.14,"resources":[]}]["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"]["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"]350
    bottom200

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.