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CVE-2024-26736 (GCVE-0-2024-26736)

Vulnerability from cvelistv5 – Published: 2024-04-03 17:00 – Updated: 2026-08-05 11:26
VLAI
Title
afs: Increase buffer size in afs_update_volume_status()
Summary
In the Linux kernel, the following vulnerability has been resolved: afs: Increase buffer size in afs_update_volume_status() The max length of volume->vid value is 20 characters. So increase idbuf[] size up to 24 to avoid overflow. Found by Linux Verification Center (linuxtesting.org) with SVACE. [DH: Actually, it's 20 + NUL, so increase it to 24 and use snprintf()]
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-05 17:35 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d2ddc776a4581d900fc3bdc7803b403daae64d88 , < 5c27d85a69fa16a08813ba37ddfb4bbc9a1ed6b5 (git)
Affected: d2ddc776a4581d900fc3bdc7803b403daae64d88 , < d9b5e2b7a8196850383c70d099bfd39e81ab6637 (git)
Affected: d2ddc776a4581d900fc3bdc7803b403daae64d88 , < e56662160fc24d28cb75ac095cc6415ae1bda43e (git)
Affected: d2ddc776a4581d900fc3bdc7803b403daae64d88 , < e8530b170e464017203e3b8c6c49af6e916aece1 (git)
Affected: d2ddc776a4581d900fc3bdc7803b403daae64d88 , < 6e6065dd25b661420fac19c34282b6c626fcd35e (git)
Affected: d2ddc776a4581d900fc3bdc7803b403daae64d88 , < d34a5e57632bb5ff825196ddd9a48ca403626dfa (git)
Affected: d2ddc776a4581d900fc3bdc7803b403daae64d88 , < 6ea38e2aeb72349cad50e38899b0ba6fbcb2af3d (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 5.4.270 , ≤ 5.4.* (semver)
Unaffected: 5.10.211 , ≤ 5.10.* (semver)
Unaffected: 5.15.150 , ≤ 5.15.* (semver)
Unaffected: 6.1.80 , ≤ 6.1.* (semver)
Unaffected: 6.6.19 , ≤ 6.6.* (semver)
Unaffected: 6.7.7 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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Por lo tanto, aumente el tama\u00f1o de idbuf[] hasta 24 para evitar el desbordamiento. Encontrado por el Centro de verificaci\u00f3n de Linux (linuxtesting.org) con SVACE. [DH: En realidad, es 20 + NUL, as\u00ed que aum\u00e9ntalo a 24 y usa 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      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: afs: Increase buffer size in afs_update_volume_status()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-26736.json",
      "version": "3"
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      "initial_release_date": "2024-04-11T02:31:03Z",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "325",
      "product_status:recommended": "452",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-26736",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-26736.json",
      "version": "67"
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\"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"4.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T11:26:55.027Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26736\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:26:55.027Z\", \"dateReserved\": \"2024-02-19T14:20:24.166Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-03T17:00:22.693Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.





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

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.