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        "category": "summary",
        "text": "Updated glibc packages that fix one security issue are now available for\nRed Hat Enterprise Linux 4 Extended Life Cycle Support.\n\nRed Hat Product Security has rated this update as having Critical security\nimpact. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available from the CVE link in the\nReferences section.",
        "title": "Topic"
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      {
        "category": "general",
        "text": "The glibc packages provide the standard C libraries (libc), POSIX thread\nlibraries (libpthread), standard math libraries (libm), and the Name\nServer Caching Daemon (nscd) used by multiple programs on the system.\nWithout these libraries, the Linux system cannot function correctly.\n\nA heap-based buffer overflow was found in glibc's\n__nss_hostname_digits_dots() function, which is used by the gethostbyname()\nand gethostbyname2() glibc function calls. A remote attacker able to make\nan application call either of these functions could use this flaw to\nexecute arbitrary code with the permissions of the user running the\napplication. (CVE-2015-0235)\n\nRed Hat would like to thank Qualys for reporting this issue.\n\nAll glibc users are advised to upgrade to these updated packages, which\ncontain a backported patch to correct this issue.",
        "title": "Details"
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        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
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        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2015/rhsa-2015_0101.json"
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    "title": "Red Hat Security Advisory: glibc security update",
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          "date": "2015-01-28T17:13:00+00:00",
          "number": "1",
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          "text": "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.",
          "title": "Vulnerability description"
        },
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          "category": "summary",
          "text": "glibc: __nss_hostname_digits_dots() heap-based buffer overflow",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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            "4ES-ELS:glibc-debuginfo-0:2.3.4-2.57.el4.2.x86_64",
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            "4ES-ELS:glibc-devel-0:2.3.4-2.57.el4.2.x86_64",
            "4ES-ELS:glibc-headers-0:2.3.4-2.57.el4.2.i386",
            "4ES-ELS:glibc-headers-0:2.3.4-2.57.el4.2.x86_64",
            "4ES-ELS:glibc-profile-0:2.3.4-2.57.el4.2.i386",
            "4ES-ELS:glibc-profile-0:2.3.4-2.57.el4.2.x86_64",
            "4ES-ELS:glibc-utils-0:2.3.4-2.57.el4.2.i386",
            "4ES-ELS:glibc-utils-0:2.3.4-2.57.el4.2.x86_64",
            "4ES-ELS:nptl-devel-0:2.3.4-2.57.el4.2.i386",
            "4ES-ELS:nptl-devel-0:2.3.4-2.57.el4.2.i686",
            "4ES-ELS:nptl-devel-0:2.3.4-2.57.el4.2.x86_64",
            "4ES-ELS:nscd-0:2.3.4-2.57.el4.2.i386",
            "4ES-ELS:nscd-0:2.3.4-2.57.el4.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Critical"
        }
      ],
      "title": "glibc: __nss_hostname_digits_dots() heap-based buffer overflow"
    }
  ]
}