CERTA-2003-AVI-179

Vulnerability from certfr_avis - Published: - Updated:

Un utilisateur mal intentionné peut provoquer un déni de service sur une machine qui utilise une version d'OpenSSL vulnérable.

Description

OpenSSL est une mise en œuvre « open source » des protocoles Secure Sockets Layer (SSL) et Transport Layer Security (TLS). OpenSSL est largement utilisé pour sécuriser des protocoles applicatifs sur l'Internet.

Les protocoles SSL et TLS utilisent le langage Abstract Syntax Notation One (ASN.1) dans les échanges de certains objets.

Une vulnérabilité dans le traitement d'un objet ASN.1 permet à un utilisateur mal intentionné de provoquer un déni de service, en envoyant par exemple un certificat mal formé à un serveur vulnérable.

Solution

Mettre à jour OpenSSL (version 0.9.7c ou 0.9.6l).

OpenSSL version 0.9.6k sur Microsoft Windows.

Impacted products
Vendor Product Description

Show details on source website

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [],
  "affected_systems_content": "\u003cP\u003eOpenSSL version 0.9.6k sur Microsoft Windows.\u003c/P\u003e",
  "content": "## Description\n\nOpenSSL est une mise en \u0153uvre \u00ab open source \u00bb des protocoles Secure\nSockets Layer (SSL) et Transport Layer Security (TLS). OpenSSL est\nlargement utilis\u00e9 pour s\u00e9curiser des protocoles applicatifs sur\nl\u0027Internet.  \n\nLes protocoles SSL et TLS utilisent le langage Abstract Syntax Notation\nOne (ASN.1) dans les \u00e9changes de certains objets.  \n\nUne vuln\u00e9rabilit\u00e9 dans le traitement d\u0027un objet ASN.1 permet \u00e0 un\nutilisateur mal intentionn\u00e9 de provoquer un d\u00e9ni de service, en envoyant\npar exemple un certificat mal form\u00e9 \u00e0 un serveur vuln\u00e9rable.\n\n## Solution\n\nMettre \u00e0 jour OpenSSL (version 0.9.7c ou 0.9.6l).\n",
  "cves": [],
  "links": [
    {
      "title": "Avis de s\u00e9curit\u00e9 006489/OpenSSL2/1 du NISCC (National  Infrastructure Security Co-ordination Center) :",
      "url": "http://www.uniras.gov.uk/vuls/2003/006489/openssl2.htm"
    }
  ],
  "reference": "CERTA-2003-AVI-179",
  "revisions": [
    {
      "description": "version initiale.",
      "revision_date": "2003-11-05T00:00:00.000000"
    },
    {
      "description": "premi\u00e8re r\u00e9vision : correction du titre.",
      "revision_date": "2003-11-06T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service"
    }
  ],
  "summary": "Un utilisateur mal intentionn\u00e9 peut provoquer un d\u00e9ni de service sur une\nmachine qui utilise une version d\u0027OpenSSL vuln\u00e9rable.\n",
  "title": "Faille dans l\u0027impl\u00e9mentation d\u0027OpenSSL sous Microsoft Windows",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Avis de s\u00e9curit\u00e9 du NISCC 006489/OpenSSL2/1",
      "url": null
    }
  ]
}


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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.


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