wid-sec-w-2022-1748
Vulnerability from csaf_certbund
Published
2020-04-06 22:00
Modified
2023-08-23 22:00
Summary
GNU libc: Schwachstelle ermöglicht Privilegieneskalation

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
Die GNU libc ist die Basis C Bibliothek unter Linux sowie anderen Unix-Betriebssystemen, welche die Systemaufrufe sowie Basisfunktionalität bereitstellt.
Angriff
Ein lokaler Angreifer kann eine Schwachstelle in GNU libc ausnutzen, um seine Privilegien zu erhöhen.
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": "Die GNU libc ist die Basis C Bibliothek unter Linux sowie anderen Unix-Betriebssystemen, welche die Systemaufrufe sowie Basisfunktionalit\u00e4t bereitstellt.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in GNU libc ausnutzen, um seine Privilegien zu erh\u00f6hen.",
        "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-2022-1748 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2022-1748.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-1748 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-1748"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2023-2221 vom 2023-08-23",
        "url": "https://alas.aws.amazon.com/AL2/ALAS-2023-2221.html"
      },
      {
        "category": "external",
        "summary": "RedHat Bugzilla vom 2020-04-06",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1810718"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4416-1 vom 2020-07-06",
        "url": "https://usn.ubuntu.com/4416-1/"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2020:4444 vom 2020-11-04",
        "url": "https://access.redhat.com/errata/RHSA-2020:4444"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2020-4444 vom 2020-11-11",
        "url": "https://linux.oracle.com/errata/ELSA-2020-4444.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2020:5149 vom 2020-11-18",
        "url": "https://access.redhat.com/errata/RHSA-2020:5149"
      },
      {
        "category": "external",
        "summary": "AVAYA Security Advisory ASA-2020-169 vom 2020-12-07",
        "url": "https://downloads.avaya.com/css/P8/documents/101072796"
      },
      {
        "category": "external",
        "summary": "F5 Security Advisory K49921213 vom 2021-01-05",
        "url": "https://support.f5.com/csp/article/K49921213"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:0146 vom 2021-01-14",
        "url": "https://access.redhat.com/errata/RHSA-2021:0146"
      },
      {
        "category": "external",
        "summary": "Gentoo Linux Security Advisory GLSA-202101-20 vom 2021-01-25",
        "url": "https://security.gentoo.org/glsa/202101-20"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2020:5635 vom 2021-02-24",
        "url": "https://access.redhat.com/errata/RHSA-2020:5635"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2020:5633 vom 2021-02-24",
        "url": "https://access.redhat.com/errata/RHSA-2020:5633"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:1123-1 vom 2022-04-06",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-April/010664.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-3152 vom 2022-10-17",
        "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2023-1944 vom 2023-02-22",
        "url": "https://alas.aws.amazon.com/AL2/ALAS-2023-1944.html"
      }
    ],
    "source_lang": "en-US",
    "title": "GNU libc: Schwachstelle erm\u00f6glicht Privilegieneskalation",
    "tracking": {
      "current_release_date": "2023-08-23T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:36:35.840+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2022-1748",
      "initial_release_date": "2020-04-06T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2020-04-06T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2020-07-06T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2020-11-03T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2020-11-11T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2020-11-18T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2020-12-08T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von AVAYA aufgenommen"
        },
        {
          "date": "2021-01-05T23:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Informationen von F5 aufgenommen"
        },
        {
          "date": "2021-01-14T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-01-25T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Gentoo aufgenommen"
        },
        {
          "date": "2021-02-24T23:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-04-06T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2022-10-17T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2023-02-22T23:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2023-08-23T22:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von Amazon aufgenommen"
        }
      ],
      "status": "final",
      "version": "14"
    }
  },
  "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": [
          {
            "category": "product_name",
            "name": "Avaya Aura Experience Portal",
            "product": {
              "name": "Avaya Aura Experience Portal",
              "product_id": "T015519",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:aura_experience_portal:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Avaya"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "F5 BIG-IP",
            "product": {
              "name": "F5 BIG-IP",
              "product_id": "T001663",
              "product_identification_helper": {
                "cpe": "cpe:/a:f5:big-ip:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "F5"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Gentoo Linux",
            "product": {
              "name": "Gentoo Linux",
              "product_id": "T012167",
              "product_identification_helper": {
                "cpe": "cpe:/o:gentoo:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Gentoo"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source GNU libc \u003c 2.29",
            "product": {
              "name": "Open Source GNU libc \u003c 2.29",
              "product_id": "T013508",
              "product_identification_helper": {
                "cpe": "cpe:/a:gnu:glibc:2.29"
              }
            }
          }
        ],
        "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-2020-1752",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in GNU libc. Die Ursache dieser Schwachstelle ist ein \"use-after-free\"-Fehler innerhalb der glob()-Funktion, aufgrund einer unsachgem\u00e4\u00dfen Verarbeitung von Verzeichnispfaden, die eine anf\u00e4ngliche Tilde gefolgt von einem g\u00fcltigen Benutzernamen enthalten. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um seine Rechte zu erweitern und Code zur Ausf\u00fchrung zu bringen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T015519",
          "2951",
          "T002207",
          "67646",
          "T000126",
          "T001663",
          "398363",
          "T012167",
          "T004914"
        ]
      },
      "release_date": "2020-04-06T22:00:00.000+00:00",
      "title": "CVE-2020-1752"
    }
  ]
}


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