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CVE-2024-50143 (GCVE-0-2024-50143)

Vulnerability from cvelistv5 – Published: 2024-11-07 09:31 – Updated: 2026-08-05 11:42
VLAI
Title
udf: fix uninit-value use in udf_get_fileshortad
Summary
In the Linux kernel, the following vulnerability has been resolved: udf: fix uninit-value use in udf_get_fileshortad Check for overflow when computing alen in udf_current_aext to mitigate later uninit-value use in udf_get_fileshortad KMSAN bug[1]. After applying the patch reproducer did not trigger any issue[2]. [1] https://syzkaller.appspot.com/bug?extid=8901c4560b7ab5c2f9df [2] https://syzkaller.appspot.com/x/log.txt?x=10242227980000
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 20:21 UTC
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5eb76fb98b3335aa5cca6a7db2e659561c79c32b (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 417bd613bdbe791549f7687bb1b9b8012ff111c2 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0ce61b1f6b32df822b59c680cbe8e5ba5d335742 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4fc0d8660e391dcd8dde23c44d702be1f6846c61 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 72e445df65a0aa9066c6fe2b8736ba2fcca6dac7 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1ac49babc952f48d82676979b20885e480e69be8 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e52e0b92ed31dc62afbda15c243dcee0bb5bb58d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 264db9d666ad9a35075cc9ed9ec09d021580fbb1 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 4.19.323 , ≤ 4.19.* (semver)
Unaffected: 5.4.285 , ≤ 5.4.* (semver)
Unaffected: 5.10.246 , ≤ 5.10.* (semver)
Unaffected: 5.15.170 , ≤ 5.15.* (semver)
Unaffected: 6.1.115 , ≤ 6.1.* (semver)
Unaffected: 6.6.59 , ≤ 6.6.* (semver)
Unaffected: 6.11.6 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "udf: fix uninit-value use in udf_get_fileshortad",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-50143.json",
      "version": "3"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50143\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-07T10:15:06.243\",\"lastModified\":\"2026-08-04T11:21:25.057\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nudf: fix uninit-value use in udf_get_fileshortad\\n\\nCheck for overflow when computing alen in udf_current_aext to mitigate\\nlater uninit-value use in udf_get_fileshortad KMSAN bug[1].\\nAfter applying the patch reproducer did not trigger any issue[2].\\n\\n[1] https://syzkaller.appspot.com/bug?extid=8901c4560b7ab5c2f9df\\n[2] https://syzkaller.appspot.com/x/log.txt?x=10242227980000\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: udf: se corrige el uso de un valor no inicializado en udf_get_fileshortad. Se comprueba si hay desbordamiento al calcular alen en udf_current_aext para mitigar el uso posterior de un valor no inicializado en udf_get_fileshortad. Error de KMSAN[1]. Despu\u00e9s de aplicar el parche, el reproductor no activ\u00f3 ning\u00fan problema[2]. [1] https://syzkaller.appspot.com/bug?extid=8901c4560b7ab5c2f9df [2] 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T17:48:21+00:00",
      "cve": "CVE-2024-50143",
      "id": "CVE-2024-50143",
      "initial_release_date": "2024-11-07T00:00:00+00:00",
      "product_status:fixed": "305",
      "product_status:known_affected": "112",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: udf: fix uninit-value use in udf_get_fileshortad",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-50143.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T02:11:28Z",
      "cve": "CVE-2024-50143",
      "id": "CVE-2024-50143",
      "initial_release_date": "2024-11-08T03:49:12Z",
      "product_status:known_affected": "682",
      "product_status:known_not_affected": "32",
      "product_status:recommended": "570",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-50143",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-50143.json",
      "version": "89"
    },
    "vulnrichment": {
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\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"2.6.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:55:11.255Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-50143\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:55:11.255Z\", \"dateReserved\": \"2024-10-21T19:36:19.956Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-11-07T09:31:20.340Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.
  • 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.


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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.