Vulnerability-Lookup

usn-4707-1

Vulnerability from osv_ubuntu

Published

2021-01-28 13:41

Modified

2026-04-27 14:11

Summary

tcmu vulnerability

Details

It was discovered that TCMU lacked a check for transport-layer restrictions, allowing remote attackers to read or write files via directory traversal in an XCOPY request.

References

URL

Type

	https://ubuntu.com/security/notices/USN-4707-1	ADVISORY
	https://ubuntu.com/security/CVE-2021-3139	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-3139",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libtcmu2",
            "binary_version": "1.5.2-5ubuntu0.20.04.1"
          },
          {
            "binary_name": "tcmu-runner",
            "binary_version": "1.5.2-5ubuntu0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "tcmu",
        "purl": "pkg:deb/ubuntu/tcmu@1.5.2-5ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.5.2-5ubuntu0.20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.0-1",
        "1.5.2-2",
        "1.5.2-2ubuntu1",
        "1.5.2-3",
        "1.5.2-4",
        "1.5.2-5",
        "1.5.2-5build1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that TCMU lacked a check for transport-layer restrictions,\nallowing remote attackers to read or write files via directory traversal in\nan XCOPY request.\n",
  "id": "USN-4707-1",
  "modified": "2026-04-27T14:11:26Z",
  "published": "2021-01-28T13:41:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4707-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3139"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "tcmu vulnerability",
  "upstream": [
    "UBUNTU-CVE-2021-3139"
  ]
}

ubuntu-cve-2021-3139

Vulnerability from osv_ubuntu

Published

2021-01-13 16:15

Modified

2026-05-20 14:52

Summary

Details

In Open-iSCSI tcmu-runner 1.3.x, 1.4.x, and 1.5.x through 1.5.2, xcopy_locate_udev in tcmur_cmd_handler.c lacks a check for transport-layer restrictions, allowing remote attackers to read or write files via directory traversal in an XCOPY request. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. NOTE: relative to CVE-2020-28374, this is a similar mistake in a different algorithm.

Severity

8.1 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-3139	REPORT
	https://www.openwall.com/lists/oss-security/2021/…	REPORT
	https://ubuntu.com/security/notices/USN-4707-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2021-3139	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libtcmu2",
            "binary_version": "1.5.2-5ubuntu0.20.04.1"
          },
          {
            "binary_name": "tcmu-runner",
            "binary_version": "1.5.2-5ubuntu0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "tcmu",
        "purl": "pkg:deb/ubuntu/tcmu@1.5.2-5ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.5.2-5ubuntu0.20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.0-1",
        "1.5.2-2",
        "1.5.2-2ubuntu1",
        "1.5.2-3",
        "1.5.2-4",
        "1.5.2-5",
        "1.5.2-5build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtcmu2",
            "binary_version": "1.5.4-2"
          },
          {
            "binary_name": "tcmu-runner",
            "binary_version": "1.5.4-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "tcmu",
        "purl": "pkg:deb/ubuntu/tcmu@1.5.4-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.2-6",
        "1.5.4-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtcmu2",
            "binary_version": "1.5.4-6ubuntu1"
          },
          {
            "binary_name": "tcmu-runner",
            "binary_version": "1.5.4-6ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "tcmu",
        "purl": "pkg:deb/ubuntu/tcmu@1.5.4-6ubuntu1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.4-4.1",
        "1.5.4-5",
        "1.5.4-6ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtcmu2",
            "binary_version": "1.5.4-9"
          },
          {
            "binary_name": "tcmu-runner",
            "binary_version": "1.5.4-9"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "tcmu",
        "purl": "pkg:deb/ubuntu/tcmu@1.5.4-9?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.4-9"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libtcmu2",
            "binary_version": "1.5.4-10"
          },
          {
            "binary_name": "tcmu-runner",
            "binary_version": "1.5.4-10"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "tcmu",
        "purl": "pkg:deb/ubuntu/tcmu@1.5.4-10?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.4-9",
        "1.5.4-10"
      ]
    }
  ],
  "aliases": [],
  "details": "In Open-iSCSI tcmu-runner 1.3.x, 1.4.x, and 1.5.x through 1.5.2, xcopy_locate_udev in tcmur_cmd_handler.c lacks a check for transport-layer restrictions, allowing remote attackers to read or write files via directory traversal in an XCOPY request. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. NOTE: relative to CVE-2020-28374, this is a similar mistake in a different algorithm.",
  "id": "UBUNTU-CVE-2021-3139",
  "modified": "2026-05-20T14:52:49Z",
  "published": "2021-01-13T16:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3139"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2021/01/13/5"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4707-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-3139"
    }
  ],
  "related": [
    "USN-4707-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-3139"
  ]
}

Sightings

Author	Source	Type	Date	Other

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

usn-4707-1

Vulnerability from osv_ubuntu

ubuntu-cve-2021-3139

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature