CVE-2023-3867 (GCVE-0-2023-3867)

Vulnerability from cvelistv5 – Published: 2025-08-16 13:29 – Updated: 2026-08-15 12:23
VLAI
Title
ksmbd: fix out of bounds read in smb2_sess_setup
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds read in smb2_sess_setup ksmbd does not consider the case of that smb2 session setup is in compound request. If this is the second payload of the compound, OOB read issue occurs while processing the first payload in the smb2_sess_setup().
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 676392184785ace61e939831e7ca44a03d438c3b (git)
Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < ef572ffa8eb44111eed2925fbb2adca78bdcbf61 (git)
Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 2ba03cecb12ac7ac9e0170e251543c56832d9959 (git)
Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 98422bdd4cb3ca4d08844046f6507d7ec2c2b8d8 (git)
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Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.145 , ≤ 5.15.* (semver)
Unaffected: 6.1.40 , ≤ 6.1.* (semver)
Unaffected: 6.4.5 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "cve": "CVE-2023-3867",
      "id": "CVE-2023-3867",
      "initial_release_date": "2023-07-20T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Out of bounds read in smb2_sess_setup",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-3867.json",
      "version": "3"
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      "cve": "CVE-2023-3867",
      "id": "CVE-2023-3867",
      "initial_release_date": "2024-10-09T03:40:36Z",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "406",
      "product_status:recommended": "318",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-3867",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-3867.json",
      "version": "66"
    }
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.



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