CVE-2021-47172 (GCVE-0-2021-47172)

Vulnerability from cvelistv5 – Published: 2024-03-25 09:16 – Updated: 2026-05-23 15:19
VLAI
Title
iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers Channel numbering must start at 0 and then not have any holes, or it is possible to overflow the available storage. Note this bug was introduced as part of a fix to ensure we didn't rely on the ordering of child nodes. So we need to support arbitrary ordering but they all need to be there somewhere. Note I hit this when using qemu to test the rest of this series. Arguably this isn't the best fix, but it is probably the most minimal option for backporting etc. Alexandru's sign-off is here because he carried this patch in a larger set that Jonathan then applied.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-17 17:18 UTC
CWE
  • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7056 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 5408cbc6337300d6f1a87c797273c535ed96305a , < f49149964d2423fb618fb6b755bb1eaa431cca2c (git)
Affected: d7857e4ee1ba69732b16c73b2f2dde83ecd78ee4 , < f70122825076117787b91e7f219e21c09f11a5b9 (git)
Affected: d7857e4ee1ba69732b16c73b2f2dde83ecd78ee4 , < 26da8040eccc6c6b0e415e9a3baf72fd39eb2fdc (git)
Affected: d7857e4ee1ba69732b16c73b2f2dde83ecd78ee4 , < f2a772c51206b0c3f262e4f6a3812c89a650191b (git)
Affected: 5.4.14 , < 5.4.124 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.5
Unaffected: 0 , < 5.5 (semver)
Unaffected: 5.4.124 , ≤ 5.4.* (semver)
Unaffected: 5.10.42 , ≤ 5.10.* (semver)
Unaffected: 5.12.9 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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                "url": "https://git.kernel.org/stable/c/f2a772c51206b0c3f262e4f6a3812c89a650191b"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 5.5,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "NONE",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "version": "3.1"
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              {
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                      },
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                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-07-17T17:18:44.850824Z",
                    "version": "2.0.3"
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            ],
            "problemTypes": [
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                    "cweId": "CWE-120",
                    "description": "CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
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                    "type": "CWE"
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              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
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              "product": "Linux",
              "programFiles": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              "url": "https://git.kernel.org/stable/c/f2a772c51206b0c3f262e4f6a3812c89a650191b"
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        "datePublished": "2024-03-25T09:16:23.741Z",
        "dateReserved": "2024-03-25T09:12:14.111Z",
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        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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