Vulnerability-Lookup

GHSA-2H3H-P2MP-RW5Q

Vulnerability from github – Published: 2025-09-18 15:30 – Updated: 2025-12-12 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

cifs: prevent use-after-free by freeing the cfile later

In smb2_compound_op we have a possible use-after-free which can cause hard to debug problems later on.

This was revealed during stress testing with KASAN enabled kernel. Fixing it by moving the cfile free call to a few lines below, after the usage.

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53377"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-18T14:15:40Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: prevent use-after-free by freeing the cfile later\n\nIn smb2_compound_op we have a possible use-after-free\nwhich can cause hard to debug problems later on.\n\nThis was revealed during stress testing with KASAN enabled\nkernel. Fixing it by moving the cfile free call to\na few lines below, after the usage.",
  "id": "GHSA-2h3h-p2mp-rw5q",
  "modified": "2025-12-12T18:30:28Z",
  "published": "2025-09-18T15:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53377"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/33f736187d08f6bc822117629f263b97d3df4165"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4fe07d55a5461e66a55fbefb57f85ff0facea32b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b6353518ef8180816e863aa23b06456f395404d6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d017880782cf71f8820ee4a2002843893176501d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-53377 (GCVE-0-2023-53377)

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

Title

cifs: prevent use-after-free by freeing the cfile later

Summary

In the Linux kernel, the following vulnerability has been resolved: cifs: prevent use-after-free by freeing the cfile later In smb2_compound_op we have a possible use-after-free which can cause hard to debug problems later on. This was revealed during stress testing with KASAN enabled kernel. Fixing it by moving the cfile free call to a few lines below, after the usage.

Severity ?

7.8 (High)


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

CWE

CWE-416 - Use After Free

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/4fe07d55a5461e66a…
	https://git.kernel.org/stable/c/b6353518ef8180816…
	https://git.kernel.org/stable/c/d017880782cf71f88…
	https://git.kernel.org/stable/c/33f736187d08f6bc8…

Impacted products

Vendor

Product

Version

Linux

Affected: 76894f3e2f71177747b8b4763fb180e800279585 , < 4fe07d55a5461e66a55fbefb57f85ff0facea32b (git)
Affected: 76894f3e2f71177747b8b4763fb180e800279585 , < b6353518ef8180816e863aa23b06456f395404d6 (git)
Affected: 76894f3e2f71177747b8b4763fb180e800279585 , < d017880782cf71f8820ee4a2002843893176501d (git)
Affected: 76894f3e2f71177747b8b4763fb180e800279585 , < 33f736187d08f6bc822117629f263b97d3df4165 (git)
Affected: 2d046892a493d9760c35fdaefc3017f27f91b621 (git)

Linux

Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.1.39 , ≤ 6.1.* (semver)
Unaffected: 6.3.13 , ≤ 6.3.* (semver)
Unaffected: 6.4.4 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-53377",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:55:16.312050Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        "problemTypes": [
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            "descriptions": [
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                "type": "CWE"
              }
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T19:03:03.735Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
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          "product": "Linux",
          "programFiles": [
            "fs/smb/client/smb2inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              "versionType": "git"
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              "lessThan": "b6353518ef8180816e863aa23b06456f395404d6",
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            {
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              "status": "affected",
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            {
              "lessThan": "33f736187d08f6bc822117629f263b97d3df4165",
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.1"
            },
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              "lessThan": "6.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            },
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              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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                {
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                  "versionStartIncluding": "6.1",
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                },
                {
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                  "versionEndExcluding": "6.3.13",
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                },
                {
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                  "versionEndExcluding": "6.4.4",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
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                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "6.0.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: prevent use-after-free by freeing the cfile later\n\nIn smb2_compound_op we have a possible use-after-free\nwhich can cause hard to debug problems later on.\n\nThis was revealed during stress testing with KASAN enabled\nkernel. Fixing it by moving the cfile free call to\na few lines below, after the usage."
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        "dateUpdated": "2025-09-18T13:33:23.162Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "datePublished": "2025-09-18T13:33:23.162Z",
    "dateReserved": "2025-09-17T14:54:09.735Z",
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    "state": "PUBLISHED"
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}

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

GHSA-2H3H-P2MP-RW5Q

CVE-2023-53377 (GCVE-0-2023-53377)

Tags

Sightings

Nomenclature