WID-SEC-W-2026-0758

Vulnerability from csaf_certbund - Published: 2026-03-17 23:00 - Updated: 2026-03-19 23:00
Summary
Canonical Snap: Schwachstelle ermöglicht Erlangen von Administratorrechten
Severity
Hoch
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: Snap (auch bekannt als Snappy) ist ein Softwareverteilungssystem und eine Paketverwaltung für Linux. Ubuntu Linux ist die Linux Distribution des Herstellers Canonical.
Angriff: Ein lokaler Angreifer kann eine Schwachstelle in Canonical Snap ausnutzen, um Administratorrechte zu erlangen.
Betroffene Betriebssysteme: - Linux
CVE-2026-3888
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "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": "Snap (auch bekannt als Snappy) ist ein Softwareverteilungssystem und eine Paketverwaltung f\u00fcr Linux.\r\nUbuntu Linux ist die Linux Distribution des Herstellers Canonical.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in Canonical Snap ausnutzen, um Administratorrechte zu erlangen.",
        "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-2026-0758 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0758.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0758 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0758"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8102-1 vom 2026-03-17",
        "url": "https://ubuntu.com/security/notices/USN-8102-1"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-grpw-jgrw-ccqr vom 2026-03-17",
        "url": "https://github.com/advisories/GHSA-grpw-jgrw-ccqr"
      },
      {
        "category": "external",
        "summary": "Qualys Security Advisory vom 2026-03-17",
        "url": "https://cdn2.qualys.com/advisory/2026/03/17/snap-confine-systemd-tmpfiles.txt"
      },
      {
        "category": "external",
        "summary": "Qualys Threat Research vom 2026-03-17",
        "url": "https://blog.qualys.com/vulnerabilities-threat-research/2026/03/17/cve-2026-3888-important-snap-flaw-enables-local-privilege-escalation-to-root"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8102-2 vom 2026-03-18",
        "url": "https://ubuntu.com/security/notices/USN-8102-2"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6170 vom 2026-03-20",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00079.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Canonical Snap: Schwachstelle erm\u00f6glicht Erlangen von Administratorrechten",
    "tracking": {
      "current_release_date": "2026-03-19T23:00:00.000+00:00",
      "generator": {
        "date": "2026-03-20T08:38:03.417+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0758",
      "initial_release_date": "2026-03-17T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-03-17T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-03-19T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Debian aufgenommen"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Canonical Snap",
            "product": {
              "name": "Canonical Snap",
              "product_id": "T051813",
              "product_identification_helper": {
                "cpe": "cpe:/a:canonical:snapd:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Canonical"
      },
      {
        "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": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Ubuntu Linux",
                "product": {
                  "name": "Ubuntu Linux",
                  "product_id": "T000126",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:-"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "snapd \u003c2.73+ubuntu25.10.1",
                "product": {
                  "name": "Ubuntu Linux snapd \u003c2.73+ubuntu25.10.1",
                  "product_id": "T051807"
                }
              },
              {
                "category": "product_version",
                "name": "snapd 2.73+ubuntu25.10.1",
                "product": {
                  "name": "Ubuntu Linux snapd 2.73+ubuntu25.10.1",
                  "product_id": "T051807-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:snapd__2.73ubuntu25.10.1"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "snapd \u003c2.73+ubuntu24.04.1",
                "product": {
                  "name": "Ubuntu Linux snapd \u003c2.73+ubuntu24.04.1",
                  "product_id": "T051808"
                }
              },
              {
                "category": "product_version",
                "name": "snapd 2.73+ubuntu24.04.1",
                "product": {
                  "name": "Ubuntu Linux snapd 2.73+ubuntu24.04.1",
                  "product_id": "T051808-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:snapd__2.73ubuntu24.04.1"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "snapd \u003c2.73+ubuntu22.04.1",
                "product": {
                  "name": "Ubuntu Linux snapd \u003c2.73+ubuntu22.04.1",
                  "product_id": "T051809"
                }
              },
              {
                "category": "product_version",
                "name": "snapd 2.73+ubuntu22.04.1",
                "product": {
                  "name": "Ubuntu Linux snapd 2.73+ubuntu22.04.1",
                  "product_id": "T051809-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:snapd__2.73ubuntu22.04.1"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "snapd \u003c2.67.1+20.04ubuntu1~esm1",
                "product": {
                  "name": "Ubuntu Linux snapd \u003c2.67.1+20.04ubuntu1~esm1",
                  "product_id": "T051810"
                }
              },
              {
                "category": "product_version",
                "name": "snapd 2.67.1+20.04ubuntu1~esm1",
                "product": {
                  "name": "Ubuntu Linux snapd 2.67.1+20.04ubuntu1~esm1",
                  "product_id": "T051810-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:snapd__2.67.120.04ubuntu1esm1"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "snapd \u003c2.61.4ubuntu0.18.04.1+esm2",
                "product": {
                  "name": "Ubuntu Linux snapd \u003c2.61.4ubuntu0.18.04.1+esm2",
                  "product_id": "T051811"
                }
              },
              {
                "category": "product_version",
                "name": "snapd  2.61.4ubuntu0.18.04.1+esm2",
                "product": {
                  "name": "Ubuntu Linux snapd  2.61.4ubuntu0.18.04.1+esm2",
                  "product_id": "T051811-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:snapd___2.61.4ubuntu0.18.04.1esm2"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "snapd \u003c2.61.4ubuntu0.16.04.1+esm2",
                "product": {
                  "name": "Ubuntu Linux snapd \u003c2.61.4ubuntu0.16.04.1+esm2",
                  "product_id": "T051812"
                }
              },
              {
                "category": "product_version",
                "name": "snapd  2.61.4ubuntu0.16.04.1+esm2",
                "product": {
                  "name": "Ubuntu Linux snapd  2.61.4ubuntu0.16.04.1+esm2",
                  "product_id": "T051812-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:snapd___2.61.4ubuntu0.16.04.1esm2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Linux"
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-3888",
      "product_status": {
        "known_affected": [
          "T051807",
          "2951",
          "T051813",
          "T000126",
          "T051811",
          "T051812",
          "T051810",
          "T051808",
          "T051809"
        ]
      },
      "release_date": "2026-03-17T23:00:00.000+00:00",
      "title": "CVE-2026-3888"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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