rhsa-2002_139
Vulnerability from csaf_redhat
Published
2002-07-25 02:15
Modified
2024-11-21 22:26
Summary
Red Hat Security Advisory: : Updated glibc packages fix vulnerabilities in resolver

Notes

Topic
Updated glibc packages are available to fix two vulnerabilities in the resolver functions.
Details
The glibc package contains standard libraries which are used by multiple programs on the system. A buffer overflow vulnerability has been found in the way the glibc resolver handles the resolution of network names and addresses via DNS (as per Internet RFC 1011). Version 2.2.5 of glibc and earlier versions are affected. A system would be vulnerable to this issue if the "networks" database in /etc/nsswitch.conf includes the "dns" entry. By default, Red Hat Linux ships with "networks" set to "files" and is therefore not vulnerable to this issue. (CAN-2002-0684) A second, related, issue is a bug in the glibc-compat packages, which provide compatibility for applications compiled against glibc version 2.0.x. Applications compiled against this version (such as those distributed with early Red Hat Linux releases 5.0, 5.1, and 5.2) could also be vulnerable to this issue. (CAN-2002-0651) These errata packages for Red Hat Linux 7.1 and 7.2 on the Itanium architecture also include a fix for the strncpy implementation in some boundary cases. All users should upgrade to these errata packages which contain patches to the glibc and glibc-compat libraries and therefore are not vulnerable to these issues.
Terms of Use
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.


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{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Updated glibc packages are available to fix two vulnerabilities in the\nresolver functions.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The glibc package contains standard libraries which are used by\nmultiple programs on the system.\n\nA buffer overflow vulnerability has been found in the way the glibc\nresolver handles the resolution of network names and addresses via DNS (as\nper Internet RFC 1011).  Version 2.2.5 of glibc and earlier versions are\naffected.  A system would be vulnerable to this issue if the\n\"networks\" database in /etc/nsswitch.conf includes the \"dns\" entry.  By\ndefault, Red Hat Linux ships with \"networks\" set to \"files\" and\nis therefore not vulnerable to this issue.  (CAN-2002-0684)\n\nA second, related, issue is a bug in the glibc-compat packages,  which\nprovide compatibility for applications compiled against glibc version\n2.0.x.  Applications compiled against this version (such as those\ndistributed with early Red Hat Linux releases 5.0, 5.1, and 5.2) could also\nbe vulnerable to this issue.  (CAN-2002-0651)\n\nThese errata packages for Red Hat Linux 7.1 and 7.2 on the Itanium\narchitecture also include a fix for the strncpy implementation in some\nboundary cases.\n\nAll users should upgrade to these errata packages which contain patches to\nthe glibc and glibc-compat libraries and therefore are not vulnerable to\nthese issues.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "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"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2002:139",
        "url": "https://access.redhat.com/errata/RHSA-2002:139"
      },
      {
        "category": "external",
        "summary": "http://www.cert.org/advisories/CA-2002-19.html",
        "url": "http://www.cert.org/advisories/CA-2002-19.html"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2002/rhsa-2002_139.json"
      }
    ],
    "title": "Red Hat Security Advisory: : Updated glibc packages fix vulnerabilities in resolver",
    "tracking": {
      "current_release_date": "2024-11-21T22:26:48+00:00",
      "generator": {
        "date": "2024-11-21T22:26:48+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHSA-2002:139",
      "initial_release_date": "2002-07-25T02:15:00+00:00",
      "revision_history": [
        {
          "date": "2002-07-25T02:15:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2002-07-11T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-21T22:26:48+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Linux 6.2",
                "product": {
                  "name": "Red Hat Linux 6.2",
                  "product_id": "Red Hat Linux 6.2",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:linux:6.2"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Linux 7.0",
                "product": {
                  "name": "Red Hat Linux 7.0",
                  "product_id": "Red Hat Linux 7.0",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:linux:7.0"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Linux 7.1",
                "product": {
                  "name": "Red Hat Linux 7.1",
                  "product_id": "Red Hat Linux 7.1",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:linux:7.1"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Linux 7.2",
                "product": {
                  "name": "Red Hat Linux 7.2",
                  "product_id": "Red Hat Linux 7.2",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:linux:7.2"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Linux 7.3",
                "product": {
                  "name": "Red Hat Linux 7.3",
                  "product_id": "Red Hat Linux 7.3",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:linux:7.3"
                  }
                }
              }
            ],
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            "name": "Red Hat Linux"
          }
        ],
        "category": "vendor",
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    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2002-0651",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616785"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Buffer overflow in the DNS resolver code used in libc, glibc, and libbind, as derived from ISC BIND, allows remote malicious DNS servers to cause a denial of service and possibly execute arbitrary code via the stub resolvers.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Linux 6.2",
          "Red Hat Linux 7.0",
          "Red Hat Linux 7.1",
          "Red Hat Linux 7.2",
          "Red Hat Linux 7.3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2002-0651"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616785",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616785"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2002-0651",
          "url": "https://www.cve.org/CVERecord?id=CVE-2002-0651"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2002-0651",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2002-0651"
        }
      ],
      "release_date": "2002-06-26T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2002-07-25T02:15:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nTo update all RPMs for your particular architecture, run:\n\nrpm -Fvh [filenames]\n\nwhere [filenames] is a list of the RPMs you wish to upgrade.  Only those\nRPMs which are currently installed will be updated.  Those RPMs which are\nnot installed but included in the list will not be updated.  Note that you\ncan also use wildcards (*.rpm) if your current directory *only* contains the\ndesired RPMs.\n\nPlease note that this update is also available via Red Hat Network.  Many\npeople find this an easier way to apply updates.  To use Red Hat Network,\nlaunch the Red Hat Update Agent with the following command:\n\nup2date\n\nThis will start an interactive process that will result in the appropriate\nRPMs being upgraded on your system.",
          "product_ids": [
            "Red Hat Linux 6.2",
            "Red Hat Linux 7.0",
            "Red Hat Linux 7.1",
            "Red Hat Linux 7.2",
            "Red Hat Linux 7.3"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2002:139"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "security flaw"
    },
    {
      "cve": "CVE-2002-0684",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616795"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Buffer overflow in DNS resolver functions that perform lookup of network names and addresses, as used in BIND 4.9.8 and ported to glibc 2.2.5 and earlier, allows remote malicious DNS servers to execute arbitrary code through a subroutine used by functions such as getnetbyname and getnetbyaddr.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Linux 6.2",
          "Red Hat Linux 7.0",
          "Red Hat Linux 7.1",
          "Red Hat Linux 7.2",
          "Red Hat Linux 7.3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2002-0684"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616795",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616795"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2002-0684",
          "url": "https://www.cve.org/CVERecord?id=CVE-2002-0684"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2002-0684",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2002-0684"
        }
      ],
      "release_date": "2002-06-26T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2002-07-25T02:15:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nTo update all RPMs for your particular architecture, run:\n\nrpm -Fvh [filenames]\n\nwhere [filenames] is a list of the RPMs you wish to upgrade.  Only those\nRPMs which are currently installed will be updated.  Those RPMs which are\nnot installed but included in the list will not be updated.  Note that you\ncan also use wildcards (*.rpm) if your current directory *only* contains the\ndesired RPMs.\n\nPlease note that this update is also available via Red Hat Network.  Many\npeople find this an easier way to apply updates.  To use Red Hat Network,\nlaunch the Red Hat Update Agent with the following command:\n\nup2date\n\nThis will start an interactive process that will result in the appropriate\nRPMs being upgraded on your system.",
          "product_ids": [
            "Red Hat Linux 6.2",
            "Red Hat Linux 7.0",
            "Red Hat Linux 7.1",
            "Red Hat Linux 7.2",
            "Red Hat Linux 7.3"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2002:139"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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