Fix of 6 CVEs

{
  "id": "bf19a936201b5dd26a24a03c66f7c462495663e0dd5a1ebdfd8dc1d9335fc424",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1792659106",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Fix of 6 CVEs",
    "summary": "* SECURITY UPDATE: heap buffer overflows and out-of-bounds read in index handling - debian/patches/CVE-2026-42617_CVE-2026-46572_CVE-2026-56136.patch: validate the index entry stream and INDEX_ROOT.index_block_size read from disk, and check the size copied from the index root to the new index block in ntfs_ir_to_ib(), in include/ntfs-3g/index.h, libntfs-3g/attrib.c and libntfs-3g/index.c. - CVE-2026-42617 - CVE-2026-46572 - CVE-2026-56136 * SECURITY UPDATE: heap buffer overflow in index block split - debian/patches/CVE-2026-46569.patch: bound tail_size against the destination block capacity in ntfs_ib_copy_tail() in libntfs-3g/index.c. - CVE-2026-46569 * SECURITY UPDATE: out-of-bounds write when walking a deep index - debian/patches/CVE-2026-46570.patch: limit the B-tree depth to MAX_PARENT_VCN in ntfs_index_walk_down() in libntfs-3g/index.c. - CVE-2026-46570 * Fix double free when an index entry is too long to hold a VCN - debian/patches/index-reject-entry-too-long-for-vcn.patch: reject an index entry that is too long to hold a VCN in ntfs_ie_add_vcn() in libntfs-3g/index.c, as its 16-bit length would wrap to zero. * SECURITY UPDATE: heap buffer overflow in LZNT1 decompression - debian/patches/CVE-2026-42618.patch: end a sub-block when its output is full and check the input bounds before reading sub-block headers and phrase tokens in ntfs_decompress() in libntfs-3g/compress.c, and zero the unused part of the output when the compressed data is garbled. - CVE-2026-42618 * SECU",
    "evidence": "osv:CLSA-2026-1792659106",
    "products": [
      {
        "name": {
          "value": "libntfs-3g88",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:2017.3.23-2ubuntu0.18.04.5+tuxcare.els1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ntfs-3g",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:2017.3.23-2ubuntu0.18.04.5+tuxcare.els1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ntfs-3g-dev",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:2017.3.23-2ubuntu0.18.04.5+tuxcare.els1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1792659106",
      "aliases": [
        "CLSA-2026-1792659106"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:2017.3.23-2ubuntu0.18.04.5+tuxcare.els1"
                }
              ]
            }
          ],
          "package": {
            "name": "libntfs-3g88",
            "purl": "pkg:deb/tuxcare/libntfs-3g88?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1792659106.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:2017.3.23-2ubuntu0.18.04.5+tuxcare.els1"
                }
              ]
            }
          ],
          "package": {
            "name": "ntfs-3g",
            "purl": "pkg:deb/tuxcare/ntfs-3g?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1792659106.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:2017.3.23-2ubuntu0.18.04.5+tuxcare.els1"
                }
              ]
            }
          ],
          "package": {
            "name": "ntfs-3g-dev",
            "purl": "pkg:deb/tuxcare/ntfs-3g-dev?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1792659106.json"
          }
        }
      ],
      "modified": "2026-10-26T09:43:17.103678597Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-42616",
        "CVE-2026-42617",
        "CVE-2026-42618",
        "CVE-2026-46569",
        "CVE-2026-46570",
        "CVE-2026-46572",
        "CVE-2026-56136"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1792659106.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-42616",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-42617",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-42618",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-46569",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-46570",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-46572"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-42616",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-42617",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-42618",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-46569",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-46570",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-46572",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-56136",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 449808,
  "published_at": "2026-10-22T08:52:01+00:00"
}