Vulnerability-Lookup

GHSA-G2CF-Q8FG-WHRR

Vulnerability from github – Published: 2024-05-19 09:34 – Updated: 2024-07-03 18:42

Details

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

smb: client: guarantee refcounted children from parent session

Avoid potential use-after-free bugs when walking DFS referrals, mounting and performing DFS failover by ensuring that all children from parent @tcon->ses are also refcounted. They're all needed across the entire DFS mount. Get rid of @tcon->dfs_ses_list while we're at it, too.

Severity ?

8.4 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-35869"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-19T09:15:08Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: guarantee refcounted children from parent session\n\nAvoid potential use-after-free bugs when walking DFS referrals,\nmounting and performing DFS failover by ensuring that all children\nfrom parent @tcon-\u003eses are also refcounted.  They\u0027re all needed across\nthe entire DFS mount.  Get rid of @tcon-\u003edfs_ses_list while we\u0027re at\nit, too.",
  "id": "GHSA-g2cf-q8fg-whrr",
  "modified": "2024-07-03T18:42:30Z",
  "published": "2024-05-19T09:34:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35869"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/062a7f0ff46eb57aff526897bd2bebfdb1d3046a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/645f332c6b63499cc76197f9b6bffcc659ba64cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e1db9ae87b7148c021daee1fcc4bc71b2ac58a79"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-35869 (GCVE-0-2024-35869)

Vulnerability from cvelistv5 – Published: 2024-05-19 08:34 – Updated: 2026-01-05 10:35

Title

smb: client: guarantee refcounted children from parent session

Summary

In the Linux kernel, the following vulnerability has been resolved: smb: client: guarantee refcounted children from parent session Avoid potential use-after-free bugs when walking DFS referrals, mounting and performing DFS failover by ensuring that all children from parent @tcon->ses are also refcounted. They're all needed across the entire DFS mount. Get rid of @tcon->dfs_ses_list while we're at it, too.

Severity ?

8.4 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/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/645f332c6b63499cc…
	https://git.kernel.org/stable/c/e1db9ae87b7148c02…
	https://git.kernel.org/stable/c/062a7f0ff46eb57af…

Impacted products

Vendor

Product

Version

Linux

Affected: 8e3554150d6c80a84b3cb046615d1a0e943811dc , < 645f332c6b63499cc76197f9b6bffcc659ba64cc (git)
Affected: 8e3554150d6c80a84b3cb046615d1a0e943811dc , < e1db9ae87b7148c021daee1fcc4bc71b2ac58a79 (git)
Affected: 8e3554150d6c80a84b3cb046615d1a0e943811dc , < 062a7f0ff46eb57aff526897bd2bebfdb1d3046a (git)
Affected: f30d226bcc9f0e2d97b4a6e94c43a28148fbeab6 (git)
Affected: c082c3be0f96e759ff2e361d929832fda0b93851 (git)

Linux

Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.6.29 , ≤ 6.6.* (semver)
Unaffected: 6.8.5 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)

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JSON

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{
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            "versions": [
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            "fs/smb/client/dfs_cache.c",
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              "status": "affected",
              "version": "6.4"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "version": "6.8.5",
              "versionType": "semver"
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        }
      ],
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      "title": "smb: client: guarantee refcounted children from parent session",
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    "datePublished": "2024-05-19T08:34:27.645Z",
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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-G2CF-Q8FG-WHRR

CVE-2024-35869 (GCVE-0-2024-35869)

Tags

Sightings

Nomenclature