FKIE_CVE-2023-4389

Vulnerability from fkie_nvd - Published: 2023-08-16 19:15 - Updated: 2026-06-17 06:37
Severity
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
A flaw was found in btrfs_get_root_ref in fs/btrfs/disk-io.c in the btrfs filesystem in the Linux Kernel due to a double decrement of the reference count. This issue may allow a local attacker with user privilege to crash the system or may lead to leaked internal kernel information.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-4389Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2219271Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://patchwork.kernel.org/project/linux-btrfs/patch/20220324134454.15192-1-baijiaju1990@gmail.com/Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-4389Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2219271Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://patchwork.kernel.org/project/linux-btrfs/patch/20220324134454.15192-1-baijiaju1990@gmail.com/Patch, Vendor Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Kernel",
          "vendor": "n/a",
          "versions": [
            {
              "status": "unaffected",
              "version": "5.18-rc3"
            }
          ]
        },
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          "cpes": [
            "cpe:/o:redhat:enterprise_linux:6"
          ],
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          "packageName": "kernel",
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          "vendor": "Red Hat"
        },
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          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "unaffected",
          "packageName": "kernel",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
        {
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          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "unaffected",
          "packageName": "kernel-rt",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
        {
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          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "kernel",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
        },
        {
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          "cpes": [
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          ],
          "defaultStatus": "unaffected",
          "packageName": "kernel-rt",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
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          ],
          "defaultStatus": "unaffected",
          "packageName": "kernel",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        },
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          "defaultStatus": "unaffected",
          "packageName": "kernel-rt",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://packages.fedoraproject.org/",
          "defaultStatus": "unaffected",
          "packageName": "kernel",
          "product": "Fedora",
          "vendor": "Fedora"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0C5B2A5E-DBD7-4088-BB6A-BC887F704111",
              "versionEndExcluding": "5.10.112",
              "versionStartIncluding": "5.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            }
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          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in btrfs_get_root_ref in fs/btrfs/disk-io.c in the btrfs filesystem in the Linux Kernel due to a double decrement of the reference count. This issue may allow a local attacker with user privilege to crash the system or may lead to leaked internal kernel information."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una falla en btrfs_get_root_ref en fs/btrfs/disk-io.c en el sistema de archivos btrfs en el Kernel de Linux debido a un doble decremento del conteo de referencias. Este problema puede permitir a un atacante local con privilegios de usuario bloquear el sistema o filtrar informaci\u00f3n interna del kernel."
    }
  ],
  "id": "CVE-2023-4389",
  "lastModified": "2026-06-17T06:37:43.940",
  "metrics": {
    "cvssMetricV31": [
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          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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    "ssvcV203": [
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          "options": [
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            {
              "technicalImpact": "total"
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          "role": "CISA Coordinator",
          "timestamp": "2024-10-15T17:15:45.840832Z",
          "version": "2.0.3"
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  "published": "2023-08-16T19:15:10.163",
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      "tags": [
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  "vulnStatus": "Modified",
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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