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Security GHOST gethostbyname() heap overflow in glibc (CVE-2015-0235)

Discussion in 'CentOS, Redhat & Oracle Linux News' started by pamamolf, Jan 28, 2015.

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  1. pamamolf

    pamamolf Well-Known Member

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    Updated glibc packages that fix one security issue are now available for
    Red Hat Enterprise Linux 6 and 7.

    Red Hat Product Security has rated this update as having Critical security
    impact. A Common Vulnerability Scoring System (CVSS) base score, which
    gives a detailed severity rating, is available from the CVE link in the
    References section.

    The glibc packages provide the standard C libraries (libc), POSIX thread
    libraries (libpthread), standard math libraries (libm), and the Name
    Server Caching Daemon (nscd) used by multiple programs on the system.
    Without these libraries, the Linux system cannot function correctly.

    A heap-based buffer overflow was found in glibc's
    __nss_hostname_digits_dots() function, which is used by the gethostbyname()
    and gethostbyname2() glibc function calls. A remote attacker able to make
    an application call either of these functions could use this flaw to
    execute arbitrary code with the permissions of the user running the
    application. (CVE-2015-0235)

    Red Hat would like to thank Qualys for reporting this issue.

    All glibc users are advised to upgrade to these updated packages, which
    contain a backported patch to correct this issue.


    Details:
    Code:
    https://rhn.redhat.com/errata/RHSA-2015-0092.html
    If i am not wrong the fix is pushed out and a yum update should take care of it :)
     
  2. eva2000

    eva2000 Administrator Staff Member

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    Last edited: Jan 28, 2015
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