ubuntu-cve-2026-40026
Vulnerability from osv_ubuntu
Published
2026-04-08 22:16
Modified
2026-05-20 15:27
Summary
Details

The Sleuth Kit through 4.14.0 contains an out-of-bounds read vulnerability in the ISO9660 filesystem parser where the parse_susp() function trusts len_id, len_des, and len_src fields from the disk image to memcpy data into a stack buffer without verifying that the source data falls within the parsed SUSP block. An attacker can craft a malicious ISO image that causes reads past the end of the SUSP data buffer, and a zero-length SUSP entry can trigger an infinite parsing loop.

Severity
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtsk3-3",
            "binary_version": "3.2.3-2.2ubuntu0.1~esm1"
          },
          {
            "binary_name": "sleuthkit",
            "binary_version": "3.2.3-2.2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "sleuthkit",
        "purl": "pkg:deb/ubuntu/sleuthkit@3.2.3-2.2ubuntu0.1~esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.2.3-2ubuntu1",
        "3.2.3-2ubuntu2",
        "3.2.3-2.1",
        "3.2.3-2.2",
        "3.2.3-2.2ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtsk13",
            "binary_version": "4.2.0-3ubuntu0.1~esm1"
          },
          {
            "binary_name": "sleuthkit",
            "binary_version": "4.2.0-3ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "sleuthkit",
        "purl": "pkg:deb/ubuntu/sleuthkit@4.2.0-3ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.1.3-11ubuntu2",
        "4.1.3-12ubuntu1",
        "4.2.0-3",
        "4.2.0-3ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtsk13",
            "binary_version": "4.4.2-3"
          },
          {
            "binary_name": "sleuthkit",
            "binary_version": "4.4.2-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "sleuthkit",
        "purl": "pkg:deb/ubuntu/sleuthkit@4.4.2-3?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.4.2-1",
        "4.4.2-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtsk13",
            "binary_version": "4.6.7-1build1"
          },
          {
            "binary_name": "sleuthkit",
            "binary_version": "4.6.7-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "sleuthkit",
        "purl": "pkg:deb/ubuntu/sleuthkit@4.6.7-1build1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.6.5-1",
        "4.6.7-1",
        "4.6.7-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtsk19",
            "binary_version": "4.11.1+dfsg-1"
          },
          {
            "binary_name": "sleuthkit",
            "binary_version": "4.11.1+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "sleuthkit",
        "purl": "pkg:deb/ubuntu/sleuthkit@4.11.1+dfsg-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.10.1+dfsg-1",
        "4.11.0+dfsg-1",
        "4.11.1+dfsg-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtsk19t64",
            "binary_version": "4.12.1+dfsg-1.1ubuntu2"
          },
          {
            "binary_name": "sleuthkit",
            "binary_version": "4.12.1+dfsg-1.1ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "sleuthkit",
        "purl": "pkg:deb/ubuntu/sleuthkit@4.12.1+dfsg-1.1ubuntu2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.12.0+dfsg-1",
        "4.12.1+dfsg-1",
        "4.12.1+dfsg-1.1ubuntu1",
        "4.12.1+dfsg-1.1ubuntu2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtsk19t64",
            "binary_version": "4.12.1+dfsg-3"
          },
          {
            "binary_name": "sleuthkit",
            "binary_version": "4.12.1+dfsg-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "sleuthkit",
        "purl": "pkg:deb/ubuntu/sleuthkit@4.12.1+dfsg-3?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.12.1+dfsg-1.1ubuntu2",
        "4.12.1+dfsg-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtsk19t64",
            "binary_version": "4.12.1+dfsg-3build1"
          },
          {
            "binary_name": "sleuthkit",
            "binary_version": "4.12.1+dfsg-3build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "sleuthkit",
        "purl": "pkg:deb/ubuntu/sleuthkit@4.12.1+dfsg-3build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.12.1+dfsg-3",
        "4.12.1+dfsg-3build1"
      ]
    }
  ],
  "aliases": [],
  "details": "The Sleuth Kit through 4.14.0 contains an out-of-bounds read vulnerability in the ISO9660 filesystem parser where the parse_susp() function trusts len_id, len_des, and len_src fields from the disk image to memcpy data into a stack buffer without verifying that the source data falls within the parsed SUSP block. An attacker can craft a malicious ISO image that causes reads past the end of the SUSP data buffer, and a zero-length SUSP entry can trigger an infinite parsing loop.",
  "id": "UBUNTU-CVE-2026-40026",
  "modified": "2026-05-20T15:27:25Z",
  "published": "2026-04-08T22:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40026"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-40026"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sleuthkit/sleuthkit/pull/3445"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sleuthkit/sleuthkit/commit/a95b0ac21733b059a517aaefa667a17e1bcbdee1"
    },
    {
      "type": "REPORT",
      "url": "https://mobasi.ai/sentinel"
    },
    {
      "type": "REPORT",
      "url": "https://www.vulncheck.com/advisories/sleuth-kit-iso9660-susp-extension-reference-out-of-bounds-read"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-40026"
  ]
}



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