fkie_cve-2024-43838
Vulnerability from fkie_nvd
Published
2024-08-17 10:15
Modified
2024-10-29 16:24
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: fix overflow check in adjust_jmp_off() adjust_jmp_off() incorrectly used the insn->imm field for all overflow check, which is incorrect as that should only be done or the BPF_JMP32 | BPF_JA case, not the general jump instruction case. Fix it by using insn->off for overflow check in the general case.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/345652866a8869825a2a582ee5a28d75141f184aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4a04b4f0de59dd5c621e78f15803ee0b0544eeb8Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7CD11465-AFC4-428F-A933-C8F6486DDC2F",
              "versionEndExcluding": "6.10",
              "versionStartIncluding": "6.9.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "21DC7A88-E88C-4C44-9AFB-CBB30134097C",
              "versionEndExcluding": "6.10.3",
              "versionStartIncluding": "6.10",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: fix overflow check in adjust_jmp_off()\n\nadjust_jmp_off() incorrectly used the insn-\u003eimm field for all overflow check,\nwhich is incorrect as that should only be done or the BPF_JMP32 | BPF_JA case,\nnot the general jump instruction case. Fix it by using insn-\u003eoff for overflow\ncheck in the general case."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bpf: corrigi\u00f3 la verificaci\u00f3n de desbordamiento en ajustar_jmp_off() ajuste_jmp_off() us\u00f3 incorrectamente el campo insn-\u0026gt;imm para toda la verificaci\u00f3n de desbordamiento, lo cual es incorrecto ya que eso solo debe hacerse o el BPF_JMP32 | Caso BPF_JA, no el caso de instrucci\u00f3n de salto general. Solucionelo usando insn-\u0026gt;off para verificar el desbordamiento en el caso general."
    }
  ],
  "id": "CVE-2024-43838",
  "lastModified": "2024-10-29T16:24:43.273",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-08-17T10:15:09.390",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/345652866a8869825a2a582ee5a28d75141f184a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/4a04b4f0de59dd5c621e78f15803ee0b0544eeb8"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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