CERTFR-2026-AVI-0806

Vulnerability from certfr_avis - Published: 2026-06-26 - Updated: 2026-06-26

De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et un contournement de la politique de sécurité.

Solutions

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

Impacted products
Vendor Product Description
Ubuntu Ubuntu Ubuntu 26.04 LTS
Ubuntu Ubuntu Ubuntu 20.04 ESM
Ubuntu Ubuntu Ubuntu 22.04 LTS
References
Bulletin de sécurité Ubuntu USN-8462-1 2026-06-22 vendor-advisory
Bulletin de sécurité Ubuntu USN-8388-2 2026-06-22 vendor-advisory
Bulletin de sécurité Ubuntu USN-8461-1 2026-06-22 vendor-advisory

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Ubuntu 26.04 LTS",
      "product": {
        "name": "Ubuntu",
        "vendor": {
          "name": "Ubuntu",
          "scada": false
        }
      }
    },
    {
      "description": "Ubuntu 20.04 ESM",
      "product": {
        "name": "Ubuntu",
        "vendor": {
          "name": "Ubuntu",
          "scada": false
        }
      }
    },
    {
      "description": "Ubuntu 22.04 LTS",
      "product": {
        "name": "Ubuntu",
        "vendor": {
          "name": "Ubuntu",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-43078",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43078"
    },
    {
      "name": "CVE-2026-47329",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-47329"
    },
    {
      "name": "CVE-2026-47330",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-47330"
    },
    {
      "name": "CVE-2026-43284",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43284"
    },
    {
      "name": "CVE-2026-31431",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-31431"
    },
    {
      "name": "CVE-2026-43033",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43033"
    },
    {
      "name": "CVE-2026-43503",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43503"
    },
    {
      "name": "CVE-2026-43500",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43500"
    },
    {
      "name": "CVE-2026-47328",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-47328"
    },
    {
      "name": "CVE-2026-31533",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-31533"
    },
    {
      "name": "CVE-2026-46323",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46323"
    },
    {
      "name": "CVE-2026-47332",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-47332"
    },
    {
      "name": "CVE-2026-46000",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46000"
    },
    {
      "name": "CVE-2026-47334",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-47334"
    },
    {
      "name": "CVE-2026-43077",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43077"
    },
    {
      "name": "CVE-2026-46300",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46300"
    },
    {
      "name": "CVE-2026-45998",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-45998"
    },
    {
      "name": "CVE-2026-31504",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-31504"
    },
    {
      "name": "CVE-2026-47327",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-47327"
    },
    {
      "name": "CVE-2026-47326",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-47326"
    },
    {
      "name": "CVE-2026-31419",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-31419"
    },
    {
      "name": "CVE-2026-47337",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-47337"
    },
    {
      "name": "CVE-2026-46333",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46333"
    },
    {
      "name": "CVE-2026-47333",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-47333"
    },
    {
      "name": "CVE-2026-46028",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46028"
    },
    {
      "name": "CVE-2026-43494",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43494"
    }
  ],
  "initial_release_date": "2026-06-26T00:00:00",
  "last_revision_date": "2026-06-26T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0806",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-06-26T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service"
    },
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    },
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux d\u0027Ubuntu. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux d\u0027Ubuntu",
  "vendor_advisories": [
    {
      "published_at": "2026-06-22",
      "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8462-1",
      "url": "https://ubuntu.com/security/notices/USN-8462-1"
    },
    {
      "published_at": "2026-06-22",
      "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8388-2",
      "url": "https://ubuntu.com/security/notices/USN-8388-2"
    },
    {
      "published_at": "2026-06-22",
      "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8461-1",
      "url": "https://ubuntu.com/security/notices/USN-8461-1"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.