CERTA-2009-AVI-392

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité dans OpenSSL sous Debian permet à un utilisateur distant d'usurper un certificat arbitraire.

Description

La version d'OpenSSL mise en œuvre sous Debian autorise l'utilisation de certificats signés au moyen de condensats MD2. Or, l'algorithme MD2 est considéré comme non-sûr d'un point de vue cryptographique. De, ce fait, il est possible à un utilisateur malintentionné d'usurper un certificat arbitraire qu'il aura signé en utilisant un condensat de ce type.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None
Impacted products
Vendor Product Description
Debian N/A Debian 5.0.
Debian N/A Debian 4.0 ;
References

Show details on source website
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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Debian 5.0.",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Debian",
          "scada": false
        }
      }
    },
    {
      "description": "Debian 4.0 ;",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Debian",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Description\n\nLa version d\u0027OpenSSL mise en \u0153uvre sous Debian autorise l\u0027utilisation de\ncertificats sign\u00e9s au moyen de condensats MD2. Or, l\u0027algorithme MD2 est\nconsid\u00e9r\u00e9 comme non-s\u00fbr d\u0027un point de vue cryptographique. De, ce fait,\nil est possible \u00e0 un utilisateur malintentionn\u00e9 d\u0027usurper un certificat\narbitraire qu\u0027il aura sign\u00e9 en utilisant un condensat de ce type.\n\n## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2009-2409",
      "url": "https://www.cve.org/CVERecord?id=CVE-2009-2409"
    }
  ],
  "links": [
    {
      "title": "Bulletin de s\u00e9curit\u00e9 Debian DSA 1888 du 15 septembre 2009 :",
      "url": "http://www.debian.org/security/2009/dsa-1888"
    }
  ],
  "reference": "CERTA-2009-AVI-392",
  "revisions": [
    {
      "description": "version initiale.",
      "revision_date": "2009-09-18T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 dans OpenSSL sous Debian permet \u00e0 un utilisateur\ndistant d\u0027usurper un certificat arbitraire.\n",
  "title": "Vuln\u00e9rabilit\u00e9 de OpenSSL sous Debian",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Debian DSA-1888 du 15 septembre 2009",
      "url": null
    }
  ]
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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