CERTA-2004-AVI-075

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité à été découverte dans la pile TCP/IP des systèmes OpenBSD 3.x.

Description

La pile TCP/IP d'OpenBSD n'impose aucune limite pour le stockage des segments invalides.

L'envoi massif de segments TCP invalides permet à un utilisateur mal intentionné de réaliser un déni de service sur le système.

Solution

Appliquer le correctif suivant la version d'OpenBSD :

  • OpenBSD 3.3 :

    ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.3/common/018_tcp.patch
    
  • OpenBSD 3.4 :

    ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.4/common/013_tcp.patch
    

OpenBSD 3.x.

Impacted products
Vendor Product Description
References
Avis OpenBSD None vendor-advisory

Show details on source website

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [],
  "affected_systems_content": "\u003cP\u003eOpenBSD 3.x.\u003c/P\u003e",
  "content": "## Description\n\nLa pile TCP/IP d\u0027OpenBSD n\u0027impose aucune limite pour le stockage des\nsegments invalides.\n\nL\u0027envoi massif de segments TCP invalides permet \u00e0 un utilisateur mal\nintentionn\u00e9 de r\u00e9aliser un d\u00e9ni de service sur le syst\u00e8me.\n\n## Solution\n\nAppliquer le correctif suivant la version d\u0027OpenBSD :\n\n-   OpenBSD 3.3 :\n\n        ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.3/common/018_tcp.patch\n\n-   OpenBSD 3.4 :\n\n        ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.4/common/013_tcp.patch\n",
  "cves": [],
  "links": [],
  "reference": "CERTA-2004-AVI-075",
  "revisions": [
    {
      "description": "version initiale.",
      "revision_date": "2004-03-10T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 \u00e0 \u00e9t\u00e9 d\u00e9couverte dans la pile TCP/IP des syst\u00e8mes\nOpenBSD 3.x.\n",
  "title": "Vuln\u00e9rabilit\u00e9 dans la pile TCP/IP de OpenBSD",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Avis OpenBSD",
      "url": "http://www.openbsd.org/errata.html"
    }
  ]
}


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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.


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