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CVE-2023-53165

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: udf: Fix uninitialized array access for some pathnames For filenames that begin with . and are between 2 and 5 characters long, UDF charset conversion code would read uninitialized memory in the output buffer. The only practical impact is that the name may be prepended a "unification hash" when it is not actually needed but still it is good to fix this.

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-09-15 14:15:38.220000
Last modified
2026-11-05 21:17:17.323000
View original CVE JSON
{
  "id": "CVE-2023-53165",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-09-15T14:15:38.220",
  "lastModified": "2026-11-05T21:17:17.323",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nudf: Fix uninitialized array access for some pathnames\n\nFor filenames that begin with . and are between 2 and 5 characters long,\nUDF charset conversion code would read uninitialized memory in the\noutput buffer. The only practical impact is that the name may be prepended a\n\"unification hash\" when it is not actually needed but still it is good\nto fix this."
    }
  ],
  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "fs/udf/unicode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
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              "version": "484a10f49387e4386bf2708532e75bf78ffea2cb",
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              "versionType": "git",
              "status": "affected"
            },
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            }
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        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "fs/udf/unicode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
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              "version": "4.6",
              "status": "affected"
            },
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            },
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              "version": "5.10.192",
              "lessThanOrEqual": "5.10.*",
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            },
            {
              "version": "5.15.123",
              "lessThanOrEqual": "5.15.*",
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            },
            {
              "version": "6.1.42",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.4.7",
              "lessThanOrEqual": "6.4.*",
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            },
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              "version": "6.5",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
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            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
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        "ssvcData": {
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          "id": "CVE-2023-53165",
          "options": [
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              "exploitation": "none"
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          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-908"
        }
      ]
    }
  ],
  "configurations": [
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          "negate": false,
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}