WID-SEC-W-2026-0733

Vulnerability from csaf_certbund - Published: 2026-03-15 23:00 - Updated: 2026-04-09 22:00
Summary
libexpat: Mehrere Schwachstellen ermöglichen Denial of Service
Severity
Niedrig
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: Expat ist ein XML Parser, der in der Programmiersprache-C geschrieben ist.
Angriff: Ein lokaler Angreifer kann mehrere Schwachstellen in libexpat ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - Sonstiges - UNIX
CVE-2026-32776
CVE-2026-32777
CVE-2026-32778
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "niedrig"
    },
    "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": "Expat ist ein XML Parser, der in der Programmiersprache-C geschrieben ist.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann mehrere Schwachstellen in libexpat ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\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-2026-0733 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0733.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0733 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0733"
      },
      {
        "category": "external",
        "summary": "CVE Record vom 2026-03-15",
        "url": "https://www.cve.org/CVERecord?id=CVE-2026-32776"
      },
      {
        "category": "external",
        "summary": "CVE Record vom 2026-03-15",
        "url": "https://www.cve.org/CVERecord?id=CVE-2026-32777"
      },
      {
        "category": "external",
        "summary": "CVE Record vom 2026-03-15",
        "url": "https://www.cve.org/CVERecord?id=CVE-2026-32778"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1137-1 vom 2026-03-30",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/025027.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1159-1 vom 2026-03-31",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/025072.html"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:10466-1 vom 2026-04-01",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/2NCQLIFCHWU7ZQXLQMYHCXMCTPS5F63I/"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 7268335 vom 2026-04-01",
        "url": "https://www.ibm.com/support/pages/node/7268335"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2FIREFOX-2026-055 vom 2026-04-01",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2FIREFOX-2026-055.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2-2026-3219 vom 2026-04-01",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2-2026-3219.html"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:20448-1 vom 2026-04-02",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/ZJKXC5AWNY2OZ5GTYPZNYNDJ7XGMVAIL/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1166-1 vom 2026-04-02",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025119.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:20969-1 vom 2026-04-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025157.html"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 7268947 vom 2026-04-08",
        "url": "https://www.ibm.com/support/pages/node/7268947"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:20963-1 vom 2026-04-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025160.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:20985-1 vom 2026-04-09",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025180.html"
      }
    ],
    "source_lang": "en-US",
    "title": "libexpat: Mehrere Schwachstellen erm\u00f6glichen Denial of Service",
    "tracking": {
      "current_release_date": "2026-04-09T22:00:00.000+00:00",
      "generator": {
        "date": "2026-04-10T07:16:58.711+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0733",
      "initial_release_date": "2026-03-15T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-03-15T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-03-16T23:00:00.000+00:00",
          "number": "2",
          "summary": "Text zur Gegenma\u00dfnahme pr\u00e4zisiert"
        },
        {
          "date": "2026-03-29T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-03-31T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2026-04-01T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von openSUSE, IBM und Amazon aufgenommen"
        },
        {
          "date": "2026-04-06T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von openSUSE und SUSE aufgenommen"
        },
        {
          "date": "2026-04-08T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von SUSE und IBM aufgenommen"
        },
        {
          "date": "2026-04-09T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von SUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "8"
    }
  },
  "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": "24.0.0-24.0.1",
                "product": {
                  "name": "IBM Business Automation Workflow 24.0.0-24.0.1",
                  "product_id": "T052523",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:business_automation_workflow:24.0.0_-_24.0.1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "25.0.0-25.0.1",
                "product": {
                  "name": "IBM Business Automation Workflow 25.0.0-25.0.1",
                  "product_id": "T052524",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:business_automation_workflow:25.0.0_-_25.0.1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Business Automation Workflow"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c9.0.5.28",
                "product": {
                  "name": "IBM HTTP Server \u003c9.0.5.28",
                  "product_id": "T052355"
                }
              },
              {
                "category": "product_version",
                "name": "9.0.5.28",
                "product": {
                  "name": "IBM HTTP Server 9.0.5.28",
                  "product_id": "T052355-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:http_server:9.0.5.28"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c8.5.5.30",
                "product": {
                  "name": "IBM HTTP Server \u003c8.5.5.30",
                  "product_id": "T052356"
                }
              },
              {
                "category": "product_version",
                "name": "8.5.5.30",
                "product": {
                  "name": "IBM HTTP Server 8.5.5.30",
                  "product_id": "T052356-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:http_server:8.5.5.30"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "HTTP Server"
          }
        ],
        "category": "vendor",
        "name": "IBM"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c2.7.5",
                "product": {
                  "name": "Open Source expat \u003c2.7.5",
                  "product_id": "T051747"
                }
              },
              {
                "category": "product_version",
                "name": "2.7.5",
                "product": {
                  "name": "Open Source expat 2.7.5",
                  "product_id": "T051747-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:expat:expat:2.7.5"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "expat"
          }
        ],
        "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-2026-32776",
      "product_status": {
        "known_affected": [
          "T002207",
          "T051747",
          "T027843",
          "T052524",
          "398363",
          "T052523",
          "T052355",
          "T052356"
        ]
      },
      "release_date": "2026-03-15T23:00:00.000+00:00",
      "title": "CVE-2026-32776"
    },
    {
      "cve": "CVE-2026-32777",
      "product_status": {
        "known_affected": [
          "T002207",
          "T051747",
          "T027843",
          "T052524",
          "398363",
          "T052523",
          "T052355",
          "T052356"
        ]
      },
      "release_date": "2026-03-15T23:00:00.000+00:00",
      "title": "CVE-2026-32777"
    },
    {
      "cve": "CVE-2026-32778",
      "product_status": {
        "known_affected": [
          "T002207",
          "T051747",
          "T027843",
          "T052524",
          "398363",
          "T052523",
          "T052355",
          "T052356"
        ]
      },
      "release_date": "2026-03-15T23:00:00.000+00:00",
      "title": "CVE-2026-32778"
    }
  ]
}


Log in or create an account to share your comment.




Tags
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.