csaf_certbund - wid-sec-w-2024-3746

WID-SEC-W-2024-3746

Vulnerability from csaf_certbund - Published: 2024-12-23 23:00 - Updated: 2025-06-19 22:00

Summary

libxml2: Schwachstelle ermöglicht XXE Angriffe

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 entfernter, anonymer Angreifer kann eine Schwachstelle in libxml2 ausnutzen, um Dateien zu manipulieren oder einen Denial of Service zu verursachen.

Betroffene Betriebssysteme

- Linux - UNIX - Windows

JSON

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": "libxml ist ein C Parser und Toolkit, welches f\u00fcr das Gnome Projekt entwickelt wurde.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in libxml2 ausnutzen, um Dateien zu manipulieren oder einen Denial of Service zu verursachen.",
        "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-2024-3746 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-3746.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-3746 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-3746"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugtracker vom 2024-12-23",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2333871"
      },
      {
        "category": "external",
        "summary": "GitHub Advisory Database vom 2024-12-23",
        "url": "https://github.com/advisories/GHSA-6c2p-rqx3-w4px"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2024-867A14DE12 vom 2024-12-24",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2024-867a14de12"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2024-9F3765A04B vom 2024-12-24",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2024-9f3765a04b"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2024:14611-1 vom 2024-12-30",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/VNFRSHS45PIJOVDOQPX33OOOOBMDTP7F/"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-7215-1 vom 2025-01-16",
        "url": "https://ubuntu.com/security/notices/USN-7215-1"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2025:0024-1 vom 2025-01-23",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/MJTWGGN25MWIFFI6LEBRJNH3QPOW4COP/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2025:20116-1 vom 2025-06-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2025-June/021211.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2025:20418-1 vom 2025-06-20",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2025-June/021592.html"
      }
    ],
    "source_lang": "en-US",
    "title": "libxml2: Schwachstelle erm\u00f6glicht XXE Angriffe",
    "tracking": {
      "current_release_date": "2025-06-19T22:00:00.000+00:00",
      "generator": {
        "date": "2025-06-20T10:59:24.934+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.12"
        }
      },
      "id": "WID-SEC-W-2024-3746",
      "initial_release_date": "2024-12-23T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2024-12-23T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2024-12-30T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von openSUSE aufgenommen"
        },
        {
          "date": "2025-01-16T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2025-01-23T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von openSUSE aufgenommen"
        },
        {
          "date": "2025-06-03T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2025-06-19T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "6"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "74185",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c2.11.9",
                "product": {
                  "name": "Open Source libxml2 \u003c2.11.9",
                  "product_id": "T039969"
                }
              },
              {
                "category": "product_version",
                "name": "2.11.9",
                "product": {
                  "name": "Open Source libxml2 2.11.9",
                  "product_id": "T039969-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:xmlsoft:libxml2:2.11.9"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c2.12.9",
                "product": {
                  "name": "Open Source libxml2 \u003c2.12.9",
                  "product_id": "T039970"
                }
              },
              {
                "category": "product_version",
                "name": "2.12.9",
                "product": {
                  "name": "Open Source libxml2 2.12.9",
                  "product_id": "T039970-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:xmlsoft:libxml2:2.12.9"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c2.13.3",
                "product": {
                  "name": "Open Source libxml2 \u003c2.13.3",
                  "product_id": "T039971"
                }
              },
              {
                "category": "product_version",
                "name": "2.13.3",
                "product": {
                  "name": "Open Source libxml2 2.13.3",
                  "product_id": "T039971-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:xmlsoft:libxml2:2.13.3"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "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"
      },
      {
        "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-2024-40896",
      "product_status": {
        "known_affected": [
          "T002207",
          "T000126",
          "T039969",
          "T027843",
          "T039971",
          "T039970",
          "74185"
        ]
      },
      "release_date": "2024-12-23T23:00:00.000+00:00",
      "title": "CVE-2024-40896"
    }
  ]
}

CVE-2024-40896 (GCVE-0-2024-40896)

Vulnerability from cvelistv5 – Published: 2024-12-23 00:00 – Updated: 2025-02-28 13:07

Summary

In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce events for external entities even if custom SAX handlers try to override entity content (by setting "checked"). This makes classic XXE attacks possible.

Severity ?

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CWE

CWE-611 - Improper Restriction of XML External Entity Reference

Assigner

mitre

References

URL

Tags

	https://gitlab.gnome.org/GNOME/libxml2/-/issues/761
	https://gitlab.gnome.org/GNOME/libxml2/-/commit/1…

Impacted products

	Vendor	Product	Version
	libxml2	libxml2	Affected: 2.11.0 , < 2.11.9 (semver) Affected: 2.12.0 , < 2.12.9 (semver) Affected: 2.13.0 , < 2.13.3 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.1,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-40896",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-12-24T02:10:22.590277Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-12-24T02:11:06.747Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-02-28T13:07:30.165Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://security.netapp.com/advisory/ntap-20250228-0004/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "libxml2",
          "vendor": "libxml2",
          "versions": [
            {
              "lessThan": "2.11.9",
              "status": "affected",
              "version": "2.11.0",
              "versionType": "semver"
            },
            {
              "lessThan": "2.12.9",
              "status": "affected",
              "version": "2.12.0",
              "versionType": "semver"
            },
            {
              "lessThan": "2.13.3",
              "status": "affected",
              "version": "2.13.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce events for external entities even if custom SAX handlers try to override entity content (by setting \"checked\"). This makes classic XXE attacks possible."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-611",
              "description": "CWE-611 Improper Restriction of XML External Entity Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-23T17:21:42.188Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/761"
        },
        {
          "url": "https://gitlab.gnome.org/GNOME/libxml2/-/commit/1a8932303969907f6572b1b6aac4081c56adb5c6"
        }
      ],
      "x_generator": {
        "engine": "enrichogram 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2024-40896",
    "datePublished": "2024-12-23T00:00:00.000Z",
    "dateReserved": "2024-07-12T00:00:00.000Z",
    "dateUpdated": "2025-02-28T13:07:30.165Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted

WID-SEC-W-2024-3746

CVE-2024-40896 (GCVE-0-2024-40896)

Tags

Sightings

Nomenclature