WID-SEC-W-2023-0872

Vulnerability from csaf_certbund - Published: 2023-04-05 22:00 - Updated: 2024-04-21 22:00
Summary
Linux Kernel: Schwachstelle ermöglicht Denial of Service

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung
Der Kernel stellt den Kern des Linux Betriebssystems dar.
Angriff
Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen und um potenziell Informationen offenzulegen.
Betroffene Betriebssysteme
- Linux
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren und um potenziell Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2023-0872 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-0872.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-0872 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-0872"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:0412 vom 2024-01-25",
        "url": "https://access.redhat.com/errata/RHSA-2024:0412"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-rc9p-5gf8-h3m8 vom 2023-04-05",
        "url": "https://github.com/advisories/GHSA-rc9p-5gf8-h3m8"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:1895-1 vom 2023-04-18",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-April/014487.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:1897-1 vom 2023-04-18",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-April/014485.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:1992-1 vom 2023-04-25",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-April/014572.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:2147-1 vom 2023-05-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-May/014817.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:2148-1 vom 2023-05-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-May/014816.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:2146-1 vom 2023-05-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-May/014812.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:0575 vom 2024-01-30",
        "url": "https://access.redhat.com/errata/RHSA-2024:0575"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:2646-1 vom 2024-02-27",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2024-February/018025.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:2809-1 vom 2023-07-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-July/015470.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALASKERNEL-5.15-2023-023 vom 2023-07-13",
        "url": "https://alas.aws.amazon.com/AL2/ALASKERNEL-5.15-2023-023.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:2871-1 vom 2023-07-18",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-July/015524.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2023-6583 vom 2024-01-18",
        "url": "https://oss.oracle.com/pipermail/el-errata/2024-January/015150.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:0881 vom 2024-02-20",
        "url": "https://access.redhat.com/errata/RHSA-2024:0881"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2024:0897 vom 2024-02-20",
        "url": "https://access.redhat.com/errata/RHSA-2024:0897"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2024-0897 vom 2024-03-07",
        "url": "https://linux.oracle.com/errata/ELSA-2024-0897.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2024-12169 vom 2024-02-23",
        "url": "https://linux.oracle.com/errata/ELSA-2024-12169.html"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 7144861 vom 2024-03-20",
        "url": "https://www.ibm.com/support/pages/node/7144861"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6740-1 vom 2024-04-19",
        "url": "https://ubuntu.com/security/notices/USN-6740-1"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2024-04-21T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:48:13.086+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2023-0872",
      "initial_release_date": "2023-04-05T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-04-05T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2023-04-18T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-04-24T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-05-09T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-07-11T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-07-13T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2023-07-18T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2024-01-18T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2024-01-25T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2024-01-30T23:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2024-02-20T23:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2024-02-22T23:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2024-02-27T23:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2024-03-07T23:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2024-03-20T23:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von IBM aufgenommen"
        },
        {
          "date": "2024-04-21T22:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        }
      ],
      "status": "final",
      "version": "16"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Amazon Linux 2",
            "product": {
              "name": "Amazon Linux 2",
              "product_id": "398363",
              "product_identification_helper": {
                "cpe": "cpe:/o:amazon:linux_2:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Amazon"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "Plus 10.1",
                "product": {
                  "name": "IBM Spectrum Protect Plus 10.1",
                  "product_id": "T015895",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:spectrum_protect:plus_10.1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Spectrum Protect"
          }
        ],
        "category": "vendor",
        "name": "IBM"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source Linux Kernel",
            "product": {
              "name": "Open Source Linux Kernel",
              "product_id": "6368",
              "product_identification_helper": {
                "cpe": "cpe:/o:linux:linux_kernel:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-1838",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle im Linux-Kernel in der \"virtio\"-Netzwerkunterkomponente. Eine \"fget()\"-Operation wird mehrfach aufgerufen, was zu einem Use-after-free-Problem in \"vhost_net_set_backend\" in [drivers/vhost/net.c] f\u00fchrt. Ein lokaler Angreifer kann dies ausnutzen, um das System zum Absturz zu bringen oder m\u00f6glicherweise Kernel-Informationen offenzulegen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "6368",
          "T000126",
          "398363",
          "T015895",
          "T004914"
        ]
      },
      "release_date": "2023-04-05T22:00:00.000+00:00",
      "title": "CVE-2023-1838"
    }
  ]
}


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Taxonomy of the tags.




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.