Ubuntu 2519-1: GNU C Library vulnerabilities

    Date26 Feb 2015
    CategoryUbuntu
    41
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the GNU C Library.
    ==========================================================================
    Ubuntu Security Notice USN-2519-1
    February 26, 2015
    
    eglibc, glibc vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.10
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    - Ubuntu 10.04 LTS
    
    Summary:
    
    Several security issues were fixed in the GNU C Library.
    
    Software Description:
    - glibc: GNU C Library
    - eglibc: GNU C Library
    
    Details:
    
    Arnaud Le Blanc discovered that the GNU C Library incorrectly handled file
    descriptors when resolving DNS queries under high load. This may cause a
    denial of service in other applications, or an information leak. This issue
    only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.
    (CVE-2013-7423)
    
    It was discovered that the GNU C Library incorrectly handled receiving a
    positive answer while processing the network name when performing DNS
    resolution. A remote attacker could use this issue to cause the GNU C
    Library to hang, resulting in a denial of service. (CVE-2014-9402)
    
    Joseph Myers discovered that the GNU C Library wscanf function incorrectly
    handled memory. A remote attacker could possibly use this issue to cause
    the GNU C Library to crash, resulting in a denial of service, or possibly
    execute arbitrary code. This issue only affected Ubuntu 12.04 LTS, Ubuntu
    14.04 LTS and Ubuntu 14.10. (CVE-2015-1472, CVE-2015-1473)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.10:
      libc6                           2.19-10ubuntu2.3
    
    Ubuntu 14.04 LTS:
      libc6                           2.19-0ubuntu6.6
    
    Ubuntu 12.04 LTS:
      libc6                           2.15-0ubuntu10.11
    
    Ubuntu 10.04 LTS:
      libc6                           2.11.1-0ubuntu7.21
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-2519-1
      CVE-2013-7423, CVE-2014-9402, CVE-2015-1472, CVE-2015-1473
    
    Package Information:
      https://launchpad.net/ubuntu/+source/glibc/2.19-10ubuntu2.3
      https://launchpad.net/ubuntu/+source/eglibc/2.19-0ubuntu6.6
      https://launchpad.net/ubuntu/+source/eglibc/2.15-0ubuntu10.11
      https://launchpad.net/ubuntu/+source/eglibc/2.11.1-0ubuntu7.21
    
    
    
    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":"38","type":"x","order":"1","pct":52.05,"resources":[]},{"id":"88","title":"Should be more technical","votes":"10","type":"x","order":"2","pct":13.7,"resources":[]},{"id":"89","title":"Should include more HOWTOs","votes":"25","type":"x","order":"3","pct":34.25,"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.