WID-SEC-W-2026-0045

Vulnerability from csaf_certbund - Published: 2026-01-07 23:00 - Updated: 2026-01-11 23:00
Summary
zlib (untgz utility): Schwachstelle ermöglicht Denial of Service und potenziell Codeausführung
Severity
Kritisch
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 zlib ist eine freie Programmbibliothek zum Komprimieren und Dekomprimieren von Daten.
Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in zlib im untgz utility ausnutzen, um einen Denial of Service Angriff durchzuführen, und potenziell um beliebigen Programmcode auszuführen.
Betroffene Betriebssysteme: - Linux - UNIX
CVE-2026-22184
Affected products
Product Identifier Version Remediation
Open Source zlib <=1.3.1.2
Open Source / zlib
 <=1.3.1.2
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "kritisch"
    },
    "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 zlib ist eine freie Programmbibliothek zum Komprimieren und Dekomprimieren von Daten.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in zlib im untgz utility ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren, und potenziell um beliebigen Programmcode auszuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX",
        "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-2026-0045 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0045.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0045 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0045"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugtracker #2427688 vom 2026-01-08",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2427688"
      },
      {
        "category": "external",
        "summary": "Red Hat Customer Portal vom 2026-01-08",
        "url": "https://access.redhat.com/security/cve/cve-2026-22184"
      },
      {
        "category": "external",
        "summary": "NIST CVE-2026-22184",
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-22184"
      },
      {
        "category": "external",
        "summary": "SecLists Advisory und PoC f\u00fcr CVE-2026-22184",
        "url": "https://seclists.org/fulldisclosure/2026/Jan/3"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Tracker CVE-2026-22184 vom 2026-01-11",
        "url": "https://ubuntu.com/security/CVE-2026-22184"
      },
      {
        "category": "external",
        "summary": "SUSE Security Tracker CVE-2026-22184 vom 2026-01-11",
        "url": "https://www.suse.com/security/cve/CVE-2026-22184.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Tracker CVE-2026-22184 vom 2026-01-11",
        "url": "https://security-tracker.debian.org/tracker/CVE-2026-22184"
      }
    ],
    "source_lang": "en-US",
    "title": "zlib (untgz utility): Schwachstelle erm\u00f6glicht Denial of Service und potenziell Codeausf\u00fchrung",
    "tracking": {
      "current_release_date": "2026-01-11T23:00:00.000+00:00",
      "generator": {
        "date": "2026-01-12T08:56:10.396+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0045",
      "initial_release_date": "2026-01-07T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-01-07T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-01-08T23:00:00.000+00:00",
          "number": "2",
          "summary": "Pr\u00e4zisierung der betroffenen Komponente untgz utility"
        },
        {
          "date": "2026-01-11T23:00:00.000+00:00",
          "number": "3",
          "summary": "Informationen verschiedener Linux-Distributionen erg\u00e4nzt"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=1.3.1.2",
                "product": {
                  "name": "Open Source zlib \u003c=1.3.1.2",
                  "product_id": "T049784"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c=1.3.1.2",
                "product": {
                  "name": "Open Source zlib \u003c=1.3.1.2",
                  "product_id": "T049784-fixed"
                }
              }
            ],
            "category": "product_name",
            "name": "zlib"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-22184",
      "product_status": {
        "last_affected": [
          "T049784"
        ]
      },
      "release_date": "2026-01-07T23:00:00.000+00:00",
      "title": "CVE-2026-22184"
    }
  ]
}


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