FKIE_CVE-2023-52462

Vulnerability from fkie_nvd - Published: 2024-02-23 15:15 - Updated: 2026-06-17 06:42
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: fix check for attempt to corrupt spilled pointer When register is spilled onto a stack as a 1/2/4-byte register, we set slot_type[BPF_REG_SIZE - 1] (plus potentially few more below it, depending on actual spill size). So to check if some stack slot has spilled register we need to consult slot_type[7], not slot_type[0]. To avoid the need to remember and double-check this in the future, just use is_spilled_reg() helper.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66efPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3daePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66efPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cfPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3daePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/verifier.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2757f17972d87773b3677777f5682510f13c66ef",
              "status": "affected",
              "version": "cdd73a5ed0840da88a3b9ad353f568e6f156d417",
              "versionType": "git"
            },
            {
              "lessThan": "67e6707f07354ed1acb4e65552e97c60cf9d69cf",
              "status": "affected",
              "version": "07c286c10a9cedbd71f20269ff3a4e73d9aab2fe",
              "versionType": "git"
            },
            {
              "lessThan": "fc3e3c50a0a4cac1463967c110686189e4a59104",
              "status": "affected",
              "version": "27113c59b6d0a587b29ae72d4ff3f832f58b0651",
              "versionType": "git"
            },
            {
              "lessThan": "8dc15b0670594543c356567a1a45b0182ec63174",
              "status": "affected",
              "version": "27113c59b6d0a587b29ae72d4ff3f832f58b0651",
              "versionType": "git"
            },
            {
              "lessThan": "40617d45ea05535105e202a8a819e388a2b1f036",
              "status": "affected",
              "version": "27113c59b6d0a587b29ae72d4ff3f832f58b0651",
              "versionType": "git"
            },
            {
              "lessThan": "ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae",
              "status": "affected",
              "version": "27113c59b6d0a587b29ae72d4ff3f832f58b0651",
              "versionType": "git"
            },
            {
              "lessThan": "5.10.209",
              "status": "affected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.148",
              "status": "affected",
              "version": "5.15.86",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/verifier.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "384EB2A9-356B-40A1-968F-BCBB50C38134",
              "versionEndExcluding": "5.10.209",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E25E1389-4B0F-407A-9C94-5908FF3EE88B",
              "versionEndExcluding": "5.15.148",
              "versionStartIncluding": "5.11.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2C4951FA-80C0-4B4C-9836-6E5035DEB0F9",
              "versionEndExcluding": "6.1.75",
              "versionStartIncluding": "5.16.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BDBBEB0E-D13A-4567-8984-51C5375350B9",
              "versionEndExcluding": "6.6.14",
              "versionStartIncluding": "6.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0EA3778C-730B-464C-8023-18CA6AC0B807",
              "versionEndExcluding": "6.7.2",
              "versionStartIncluding": "6.7.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: fix check for attempt to corrupt spilled pointer\n\nWhen register is spilled onto a stack as a 1/2/4-byte register, we set\nslot_type[BPF_REG_SIZE - 1] (plus potentially few more below it,\ndepending on actual spill size). So to check if some stack slot has\nspilled register we need to consult slot_type[7], not slot_type[0].\n\nTo avoid the need to remember and double-check this in the future, just\nuse is_spilled_reg() helper."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bpf: revisi\u00f3n de correcci\u00f3n para intentar da\u00f1ar el puntero derramado Cuando el registro se derrama en una pila como un registro de 1/2/4 bytes, configuramos slot_type[BPF_REG_SIZE - 1] (m\u00e1s potencialmente algunos m\u00e1s debajo de \u00e9l, dependiendo del tama\u00f1o real del derrame). Entonces, para verificar si alguna ranura de la pila se ha desbordado, debemos consultar slot_type[7], no slot_type[0]. Para evitar la necesidad de recordar y volver a verificar esto en el futuro, simplemente use el asistente is_spilled_reg()."
    }
  ],
  "id": "CVE-2023-52462",
  "lastModified": "2026-06-17T06:42:46.573",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-52462",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-07-25T18:04:18.745118Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-02-23T15:15:08.540",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66ef"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66ef"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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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.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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