WID-SEC-W-2026-0126

Vulnerability from csaf_certbund - Published: 2026-01-15 23:00 - Updated: 2026-03-08 23:00
Summary
libxml2: Mehrere Schwachstellen ermöglichen 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
libxml ist ein C Parser und Toolkit, welches für das Gnome Projekt entwickelt wurde.
Angriff
Ein Angreifer kann mehrere Schwachstellen in libxml2 ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme
- Linux - UNIX - Windows
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": "libxml ist ein C Parser und Toolkit, welches f\u00fcr das Gnome Projekt entwickelt wurde.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in libxml2 ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX\n- Windows",
        "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-2026-0126 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0126.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0126 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0126"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugtracker #2429933 vom 2026-01-15",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2429933"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-3xfm-x84x-qwwq vom 2026-01-15",
        "url": "https://github.com/advisories/GHSA-3xfm-x84x-qwwq"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugtracker #2429959 vom 2026-01-15",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2429959"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-2j3v-cxmf-cmp7 vom 2026-01-15",
        "url": "https://github.com/advisories/GHSA-2j3v-cxmf-cmp7"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugtracker #2429975 vom 2026-01-15",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2429975"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-cjqj-7q2q-jx9c vom 2026-01-15",
        "url": "https://github.com/advisories/GHSA-cjqj-7q2q-jx9c"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:0334-1 vom 2026-01-30",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-January/023988.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:0336-1 vom 2026-01-30",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-January/023986.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:0391-1 vom 2026-02-05",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024076.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2-2026-3145 vom 2026-02-06",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2-2026-3145.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2-2026-3144 vom 2026-02-06",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2-2026-3144.html"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:20178-1 vom 2026-02-06",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/OETJD456V6IVUDH4SZA2EEFULZFLUHOB/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:20233-1 vom 2026-02-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024094.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:20234-1 vom 2026-02-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024102.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:20353-1 vom 2026-02-17",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024278.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:0568-1 vom 2026-02-17",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024333.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:20372-1 vom 2026-02-17",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024319.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:0570-1 vom 2026-02-18",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024338.html"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:10213-1 vom 2026-02-18",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/TEXEOD546XTMI35TLIH3FYTQVXI3ZVTK/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:0605-1 vom 2026-02-24",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024371.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:0606-1 vom 2026-02-24",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024370.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:0782-1 vom 2026-03-03",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024536.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:20631-1 vom 2026-03-06",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024645.html"
      }
    ],
    "source_lang": "en-US",
    "title": "libxml2: Mehrere Schwachstellen erm\u00f6glichen Denial of Service",
    "tracking": {
      "current_release_date": "2026-03-08T23:00:00.000+00:00",
      "generator": {
        "date": "2026-03-09T08:27:07.732+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0126",
      "initial_release_date": "2026-01-15T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-01-15T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-01-29T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-02-05T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE und Amazon aufgenommen"
        },
        {
          "date": "2026-02-08T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von openSUSE aufgenommen"
        },
        {
          "date": "2026-02-10T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-02-11T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-02-16T23:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-02-17T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-02-18T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von openSUSE aufgenommen"
        },
        {
          "date": "2026-02-24T23:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-03-03T23:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-03-08T23:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von SUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "12"
    }
  },
  "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": "Open Source libxml2",
            "product": {
              "name": "Open Source libxml2",
              "product_id": "T050040",
              "product_identification_helper": {
                "cpe": "cpe:/a:xmlsoft:libxml2:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "SUSE openSUSE",
            "product": {
              "name": "SUSE openSUSE",
              "product_id": "T027843",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:opensuse:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-0989",
      "product_status": {
        "known_affected": [
          "T050040",
          "T002207",
          "T027843",
          "398363"
        ]
      },
      "release_date": "2026-01-15T23:00:00.000+00:00",
      "title": "CVE-2026-0989"
    },
    {
      "cve": "CVE-2026-0990",
      "product_status": {
        "known_affected": [
          "T050040",
          "T002207",
          "T027843",
          "398363"
        ]
      },
      "release_date": "2026-01-15T23:00:00.000+00:00",
      "title": "CVE-2026-0990"
    },
    {
      "cve": "CVE-2026-0992",
      "product_status": {
        "known_affected": [
          "T050040",
          "T002207",
          "T027843",
          "398363"
        ]
      },
      "release_date": "2026-01-15T23:00:00.000+00:00",
      "title": "CVE-2026-0992"
    }
  ]
}


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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.