cvelistv5 - cve-2003-0740

CVE-2003-0740 (GCVE-0-2003-0740)

Vulnerability from cvelistv5 – Published: 2003-09-04 04:00 – Updated: 2024-08-08 02:05

Summary

Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

RHSA-2003_297

Vulnerability from csaf_redhat - Published: 2003-11-12 14:06 - Updated: 2024-11-21 22:52

Summary

Red Hat Security Advisory: stunnel security update

Notes

Topic

Updated stunnel packages are now available. These updates address problems stemming from improper use of non-reentrant functions in signal handlers.

Details

Stunnel is a wrapper for network connections. It can be used to tunnel an unencrypted network connection over an encrypted connection (encrypted using SSL or TLS) or to provide an encrypted means of connecting to services that do not natively support encryption. A previous advisory provided updated packages to address re-entrancy problems in stunnel's signal-handling routines. These updates did not address other bugs that were found by Steve Grubb, and introduced an additional bug, which was fixed in stunnel 3.26. All users should upgrade to these errata packages, which address these issues by updating stunnel to version 3.26. NOTE: After upgrading, any instances of stunnel configured to run in daemon mode should be restarted, and any active network connections that are currently being serviced by stunnel should be terminated and reestablished.

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.

JSON

To clipboard

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        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Stunnel is a wrapper for network connections. It can be used to tunnel an\nunencrypted network connection over an encrypted connection (encrypted\nusing SSL or TLS) or to provide an encrypted means of connecting to\nservices that do not natively support encryption.\n\nA previous advisory provided updated packages to address re-entrancy\nproblems in stunnel\u0027s signal-handling routines.  These updates did not\naddress other bugs that were found by Steve Grubb, and introduced an\nadditional bug, which was fixed in stunnel 3.26.\n\nAll users should upgrade to these errata packages, which address these\nissues by updating stunnel to version 3.26.\n\nNOTE: After upgrading, any instances of stunnel configured to run in daemon\nmode should be restarted, and any active network connections that are\ncurrently being serviced by stunnel should be terminated and reestablished.",
        "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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        }
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        }
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}

RHSA-2003:297

Vulnerability from csaf_redhat - Published: 2003-11-12 14:06 - Updated: 2025-11-21 17:26

Summary

Red Hat Security Advisory: stunnel security update

Notes

Topic

Updated stunnel packages are now available. These updates address problems stemming from improper use of non-reentrant functions in signal handlers.

Details

JSON

To clipboard

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  "document": {
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      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
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    },
    "lang": "en",
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        "text": "Updated stunnel packages are now available.  These updates address problems\nstemming from improper use of non-reentrant functions in signal handlers.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Stunnel is a wrapper for network connections. It can be used to tunnel an\nunencrypted network connection over an encrypted connection (encrypted\nusing SSL or TLS) or to provide an encrypted means of connecting to\nservices that do not natively support encryption.\n\nA previous advisory provided updated packages to address re-entrancy\nproblems in stunnel\u0027s signal-handling routines.  These updates did not\naddress other bugs that were found by Steve Grubb, and introduced an\nadditional bug, which was fixed in stunnel 3.26.\n\nAll users should upgrade to these errata packages, which address these\nissues by updating stunnel to version 3.26.\n\nNOTE: After upgrading, any instances of stunnel configured to run in daemon\nmode should be restarted, and any active network connections that are\ncurrently being serviced by stunnel should be terminated and reestablished.",
        "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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}

RHSA-2003:296

Vulnerability from csaf_redhat - Published: 2003-11-24 08:44 - Updated: 2025-11-21 17:26

Summary

Red Hat Security Advisory: : Updated stunnel packages available

Notes

Topic

Updated stunnel packages are now available for Red Hat Linux 7.1, 7.2, 7.3, and 8.0 systems. These updates address problems stemming from improper use of non-reentrant functions in signal handlers.

Details

JSON

To clipboard

{
  "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 stunnel packages are now available for Red Hat Linux 7.1, 7.2, 7.3,\nand 8.0 systems.  These updates address problems stemming from improper use\nof non-reentrant functions in signal handlers.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Stunnel is a wrapper for network connections. It can be used to tunnel an\nunencrypted network connection over an encrypted connection (encrypted\nusing SSL or TLS) or to provide an encrypted means of connecting to\nservices that do not natively support encryption.\n\nA previous advisory provided updated packages to address re-entrancy\nproblems in stunnel\u0027s signal-handling routines.  These updates did not\naddress other bugs that were found by Steve Grubb, and introduced an\nadditional bug, which was fixed in stunnel 3.26.\n\nAll users should upgrade to these errata packages, which address these\nissues by updating stunnel to version 3.26.\n\nNOTE: After upgrading, any instances of stunnel configured to run in daemon\nmode should be restarted, and any active network connections that are\ncurrently being serviced by stunnel should be terminated and reestablished.",
        "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/",
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        "summary": "http://marc.theaimsgroup.com/?l=stunnel-users\u0026m=105980139926784",
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      },
      {
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        "summary": "http://marc.theaimsgroup.com/?l=stunnel-users\u0026m=106221975232250",
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      },
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      }
    ],
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    "tracking": {
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              },
              {
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          "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.\n\nIf up2date fails to connect to Red Hat Network due to SSL Certificate \nErrors, you need to install a version of the up2date client with an updated \ncertificate.  The latest version of up2date is available from the Red Hat \nFTP site and may also be downloaded directly from the RHN website:\n\nhttps://rhn.redhat.com/help/latest-up2date.pxt",
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          "summary": "Canonical URL",
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0740"
        }
      ],
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      "remediations": [
        {
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          "date": "2003-11-24T08:44:00+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.\n\nIf up2date fails to connect to Red Hat Network due to SSL Certificate \nErrors, you need to install a version of the up2date client with an updated \ncertificate.  The latest version of up2date is available from the Red Hat \nFTP site and may also be downloaded directly from the RHN website:\n\nhttps://rhn.redhat.com/help/latest-up2date.pxt",
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      ],
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          "details": "Important"
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      ],
      "title": "security flaw"
    }
  ]
}

RHSA-2003_296

Vulnerability from csaf_redhat - Published: 2003-11-24 08:44 - Updated: 2024-11-21 22:52

Summary

Red Hat Security Advisory: : Updated stunnel packages available

Notes

Topic

Updated stunnel packages are now available for Red Hat Linux 7.1, 7.2, 7.3, and 8.0 systems. These updates address problems stemming from improper use of non-reentrant functions in signal handlers.

Details

JSON

To clipboard

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        "text": "Updated stunnel packages are now available for Red Hat Linux 7.1, 7.2, 7.3,\nand 8.0 systems.  These updates address problems stemming from improper use\nof non-reentrant functions in signal handlers.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Stunnel is a wrapper for network connections. It can be used to tunnel an\nunencrypted network connection over an encrypted connection (encrypted\nusing SSL or TLS) or to provide an encrypted means of connecting to\nservices that do not natively support encryption.\n\nA previous advisory provided updated packages to address re-entrancy\nproblems in stunnel\u0027s signal-handling routines.  These updates did not\naddress other bugs that were found by Steve Grubb, and introduced an\nadditional bug, which was fixed in stunnel 3.26.\n\nAll users should upgrade to these errata packages, which address these\nissues by updating stunnel to version 3.26.\n\nNOTE: After upgrading, any instances of stunnel configured to run in daemon\nmode should be restarted, and any active network connections that are\ncurrently being serviced by stunnel should be terminated and reestablished.",
        "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.",
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        }
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  ]
}

FKIE_CVE-2003-0740

Vulnerability from fkie_nvd - Published: 2003-10-20 04:00 - Updated: 2025-04-03 01:03

Severity ?

Summary

Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.

References

	URL	Tags
	cve@mitre.org	http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000736
	cve@mitre.org	http://marc.info/?l=bugtraq&m=106260760211958&w=2
	cve@mitre.org	http://www.mandriva.com/security/advisories?name=MDKSA-2003:108
	cve@mitre.org	http://www.redhat.com/support/errata/RHSA-2003-297.html
	af854a3a-2127-422b-91ae-364da2661108	http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000736
	af854a3a-2127-422b-91ae-364da2661108	http://marc.info/?l=bugtraq&m=106260760211958&w=2
	af854a3a-2127-422b-91ae-364da2661108	http://www.mandriva.com/security/advisories?name=MDKSA-2003:108
	af854a3a-2127-422b-91ae-364da2661108	http://www.redhat.com/support/errata/RHSA-2003-297.html

Impacted products

Vendor	Product	Version
stunnel	stunnel	3.3
stunnel	stunnel	3.4a
stunnel	stunnel	3.7
stunnel	stunnel	3.8
stunnel	stunnel	3.9
stunnel	stunnel	3.10
stunnel	stunnel	3.11
stunnel	stunnel	3.12
stunnel	stunnel	3.13
stunnel	stunnel	3.14
stunnel	stunnel	3.15
stunnel	stunnel	3.16
stunnel	stunnel	3.17
stunnel	stunnel	3.18
stunnel	stunnel	3.19
stunnel	stunnel	3.20
stunnel	stunnel	3.21
stunnel	stunnel	3.21a
stunnel	stunnel	3.21b
stunnel	stunnel	3.21c
stunnel	stunnel	3.22
stunnel	stunnel	3.24
stunnel	stunnel	4.0

JSON

To clipboard

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  "metrics": {
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  "sourceIdentifier": "cve@mitre.org",
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
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  ]
}

GHSA-94H5-4G3P-4V6G

Vulnerability from github – Published: 2022-04-29 01:26 – Updated: 2022-04-29 01:26

Details

Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2003-0740"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2003-10-20T04:00:00Z",
    "severity": "MODERATE"
  },
  "details": "Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.",
  "id": "GHSA-94h5-4g3p-4v6g",
  "modified": "2022-04-29T01:26:55Z",
  "published": "2022-04-29T01:26:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0740"
    },
    {
      "type": "WEB",
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    },
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      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2003:108"
    },
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      "url": "http://www.redhat.com/support/errata/RHSA-2003-297.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GSD-2003-0740

Vulnerability from gsd - Updated: 2023-12-13 01:22

Details

Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.

Aliases

CVE-2003-0740

Aliases

CVE-2003-0740

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2003-0740",
    "description": "Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.",
    "id": "GSD-2003-0740",
    "references": [
      "https://www.suse.com/security/cve/CVE-2003-0740.html",
      "https://access.redhat.com/errata/RHSA-2003:297",
      "https://access.redhat.com/errata/RHSA-2003:296"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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        "CVE-2003-0740"
      ],
      "details": "Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.",
      "id": "GSD-2003-0740",
      "modified": "2023-12-13T01:22:13.128589Z",
      "schema_version": "1.4.0"
    }
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    }
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2003-0740 (GCVE-0-2003-0740)

RHSA-2003_297

RHSA-2003:297

RHSA-2003:296

RHSA-2003_296

FKIE_CVE-2003-0740

GHSA-94H5-4G3P-4V6G

GSD-2003-0740

Tags

Sightings

Nomenclature