RHSA-2002_196

Vulnerability from csaf_redhat - Published: 2002-10-15 17:07 - Updated: 2024-11-21 22:28
Summary
Red Hat Security Advisory: : Updated xinetd packages fix denial of service vulnerability

Notes

Topic
Xinetd contains a denial-of-service (DoS) vulnerability. UPDATE 2002-12-02: Updated packages are available to fix issues encountered with the previous errata packages.
Details
Xinetd is a secure replacement for inetd, the Internet services daemon. Versions of Xinetd prior to 2.3.7 leak file descriptors for the signal pipe to services that are launched by xinetd. This could allow an attacker to execute a DoS attack via the pipe. The Common Vulnerabilities and Exposures project has assigned the name CAN-2002-0871 to this issue. Red Hat Linux 7.3 shipped with xinetd version 2.3.4 and is therefore vulnerable to this issue. All users are advised to upgrade to the errata packages which fix the vulnerability. Thanks to Solar Designer for discovering this issue.
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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    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
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    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Xinetd contains a denial-of-service (DoS) vulnerability.\n\nUPDATE 2002-12-02: Updated packages are available to fix issues encountered\nwith the previous errata packages.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Xinetd is a secure replacement for inetd, the Internet services daemon.\n\nVersions of Xinetd prior to 2.3.7 leak file descriptors for the signal\npipe to services that are launched by xinetd. This could allow an attacker\nto execute a DoS attack via the pipe. The Common Vulnerabilities and\nExposures project has assigned the name CAN-2002-0871 to this issue.\n\nRed Hat Linux 7.3 shipped with xinetd version 2.3.4 and is therefore\nvulnerable to this issue.  All users are advised to upgrade to the errata\npackages which fix the vulnerability.\n\nThanks to Solar Designer for discovering this issue.",
        "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"
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    "references": [
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        "url": "https://access.redhat.com/errata/RHSA-2002:196"
      },
      {
        "category": "external",
        "summary": "http://www.xinetd.org/",
        "url": "http://www.xinetd.org/"
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      {
        "category": "external",
        "summary": "74696",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=74696"
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        "category": "external",
        "summary": "76146",
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        "category": "external",
        "summary": "77781",
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      {
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        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2002/rhsa-2002_196.json"
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    "title": "Red Hat Security Advisory: : Updated xinetd packages fix denial of service vulnerability",
    "tracking": {
      "current_release_date": "2024-11-21T22:28:08+00:00",
      "generator": {
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      "id": "RHSA-2002:196",
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      "revision_history": [
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          "number": "1",
          "summary": "Initial version"
        },
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          "number": "2",
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        },
        {
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                }
              },
              {
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                "name": "Red Hat Linux 7.2",
                "product": {
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          "text": "1616828"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "xinetd 2.3.4 leaks file descriptors for the signal pipe to services that are launched by xinetd, which could allow those services to cause a denial of service via the pipe.",
          "title": "Vulnerability description"
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        },
        {
          "category": "external",
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        }
      ],
      "release_date": "2002-08-13T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2002-10-15T17:07:00+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.",
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          "details": "Moderate"
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}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.