Vulnerability-Lookup

FKIE_CVE-2023-53381

Vulnerability from fkie_nvd - Published: 2025-09-18 14:15 - Updated: 2026-01-14 19:16

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: NFSD: fix leaked reference count of nfsd4_ssc_umount_item The reference count of nfsd4_ssc_umount_item is not decremented on error conditions. This prevents the laundromat from unmounting the vfsmount of the source file. This patch decrements the reference count of nfsd4_ssc_umount_item on error.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2da50149981d05955e51c28e982e9ac29bd73417	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/34e8f9ec4c9ac235f917747b23a200a5e0ec857b	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6c3c05402547aaca3edb23327b50f01a881831b9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/80a15dc4a0214b55ca42675bb0bb2a8d857eb1d0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9f0df37520a27ad99eaacf38418b3d2bb5023105	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0290B9D4-539A-4C65-88D4-3A68FBF7F40B",
              "versionEndExcluding": "5.15.154",
              "versionStartIncluding": "5.14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0FD95FDA-6525-4B13-B3FB-49D9995FD8ED",
              "versionEndExcluding": "6.1.16",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "88C67289-22AD-4CA9-B202-5F5A80E5BA4B",
              "versionEndExcluding": "6.2.3",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: fix leaked reference count of nfsd4_ssc_umount_item\n\nThe reference count of nfsd4_ssc_umount_item is not decremented\non error conditions. This prevents the laundromat from unmounting\nthe vfsmount of the source file.\n\nThis patch decrements the reference count of nfsd4_ssc_umount_item\non error."
    }
  ],
  "id": "CVE-2023-53381",
  "lastModified": "2026-01-14T19:16:36.143",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-09-18T14:15:41.077",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2da50149981d05955e51c28e982e9ac29bd73417"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/34e8f9ec4c9ac235f917747b23a200a5e0ec857b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6c3c05402547aaca3edb23327b50f01a881831b9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/80a15dc4a0214b55ca42675bb0bb2a8d857eb1d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/9f0df37520a27ad99eaacf38418b3d2bb5023105"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2023-53381 (GCVE-0-2023-53381)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-01-14 19:03

Title

NFSD: fix leaked reference count of nfsd4_ssc_umount_item

Summary

Severity ?

5.5 (Medium)


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

CWE

CWE-noinfo Not enough information

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/2da50149981d05955…
	https://git.kernel.org/stable/c/80a15dc4a0214b55c…
	https://git.kernel.org/stable/c/9f0df37520a27ad99…
	https://git.kernel.org/stable/c/6c3c05402547aaca3…
	https://git.kernel.org/stable/c/34e8f9ec4c9ac235f…

Impacted products

Vendor

Product

Version

Linux

Affected: a4bc287943f5695209ff36bdc89f17b48d68fae7 , < 2da50149981d05955e51c28e982e9ac29bd73417 (git)
Affected: f4e44b393389c77958f7c58bf4415032b4cda15b , < 80a15dc4a0214b55ca42675bb0bb2a8d857eb1d0 (git)
Affected: f4e44b393389c77958f7c58bf4415032b4cda15b , < 9f0df37520a27ad99eaacf38418b3d2bb5023105 (git)
Affected: f4e44b393389c77958f7c58bf4415032b4cda15b , < 6c3c05402547aaca3edb23327b50f01a881831b9 (git)
Affected: f4e44b393389c77958f7c58bf4415032b4cda15b , < 34e8f9ec4c9ac235f917747b23a200a5e0ec857b (git)

Linux

Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.154 , ≤ 5.15.* (semver)
Unaffected: 6.1.16 , ≤ 6.1.* (semver)
Unaffected: 6.2.3 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-53381",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:56:23.125939Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T19:03:04.270Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nfsd/nfs4proc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2da50149981d05955e51c28e982e9ac29bd73417",
              "status": "affected",
              "version": "a4bc287943f5695209ff36bdc89f17b48d68fae7",
              "versionType": "git"
            },
            {
              "lessThan": "80a15dc4a0214b55ca42675bb0bb2a8d857eb1d0",
              "status": "affected",
              "version": "f4e44b393389c77958f7c58bf4415032b4cda15b",
              "versionType": "git"
            },
            {
              "lessThan": "9f0df37520a27ad99eaacf38418b3d2bb5023105",
              "status": "affected",
              "version": "f4e44b393389c77958f7c58bf4415032b4cda15b",
              "versionType": "git"
            },
            {
              "lessThan": "6c3c05402547aaca3edb23327b50f01a881831b9",
              "status": "affected",
              "version": "f4e44b393389c77958f7c58bf4415032b4cda15b",
              "versionType": "git"
            },
            {
              "lessThan": "34e8f9ec4c9ac235f917747b23a200a5e0ec857b",
              "status": "affected",
              "version": "f4e44b393389c77958f7c58bf4415032b4cda15b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/nfsd/nfs4proc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.154",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.154",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.16",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.3",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: fix leaked reference count of nfsd4_ssc_umount_item\n\nThe reference count of nfsd4_ssc_umount_item is not decremented\non error conditions. This prevents the laundromat from unmounting\nthe vfsmount of the source file.\n\nThis patch decrements the reference count of nfsd4_ssc_umount_item\non error."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-18T13:33:26.234Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2da50149981d05955e51c28e982e9ac29bd73417"
        },
        {
          "url": "https://git.kernel.org/stable/c/80a15dc4a0214b55ca42675bb0bb2a8d857eb1d0"
        },
        {
          "url": "https://git.kernel.org/stable/c/9f0df37520a27ad99eaacf38418b3d2bb5023105"
        },
        {
          "url": "https://git.kernel.org/stable/c/6c3c05402547aaca3edb23327b50f01a881831b9"
        },
        {
          "url": "https://git.kernel.org/stable/c/34e8f9ec4c9ac235f917747b23a200a5e0ec857b"
        }
      ],
      "title": "NFSD: fix leaked reference count of nfsd4_ssc_umount_item",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53381",
    "datePublished": "2025-09-18T13:33:26.234Z",
    "dateReserved": "2025-09-17T14:54:09.736Z",
    "dateUpdated": "2026-01-14T19:03:04.270Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

FKIE_CVE-2023-53381

CVE-2023-53381 (GCVE-0-2023-53381)

Tags

Sightings

Nomenclature