fkie_cve-2024-26818
Vulnerability from fkie_nvd
Published
2024-04-17 10:15
Modified
2025-03-27 21:07
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: tools/rtla: Fix clang warning about mount_point var size clang is reporting this warning: $ make HOSTCC=clang CC=clang LLVM_IAS=1 [...] clang -O -g -DVERSION=\"6.8.0-rc3\" -flto=auto -fexceptions -fstack-protector-strong -fasynchronous-unwind-tables -fstack-clash-protection -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS $(pkg-config --cflags libtracefs) -c -o src/utils.o src/utils.c src/utils.c:548:66: warning: 'fscanf' may overflow; destination buffer in argument 3 has size 1024, but the corresponding specifier may require size 1025 [-Wfortify-source] 548 | while (fscanf(fp, "%*s %" STR(MAX_PATH) "s %99s %*s %*d %*d\n", mount_point, type) == 2) { | ^ Increase mount_point variable size to MAX_PATH+1 to avoid the overflow.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/30369084ac6e27479a347899e74f523e6ca29b89Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6bdd43f62ab3bb5a306af7f0ab857af45777f5a8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a585914c266dc044f53b5c83c170f79b45fcf9aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/30369084ac6e27479a347899e74f523e6ca29b89Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6bdd43f62ab3bb5a306af7f0ab857af45777f5a8Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8a585914c266dc044f53b5c83c170f79b45fcf9aPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8


To clipboard 

{
  "configurations": [
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      "nodes": [
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              "matchCriteriaId": "66A88832-B39F-48D0-BFA1-F660E52CE523",
              "versionEndExcluding": "6.6.18",
              "versionStartIncluding": "6.5",
              "vulnerable": true
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntools/rtla: Fix clang warning about mount_point var size\n\nclang is reporting this warning:\n\n$ make HOSTCC=clang CC=clang LLVM_IAS=1\n[...]\nclang -O -g -DVERSION=\\\"6.8.0-rc3\\\" -flto=auto -fexceptions\n\t-fstack-protector-strong -fasynchronous-unwind-tables\n\t-fstack-clash-protection  -Wall -Werror=format-security\n\t-Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS\n\t$(pkg-config --cflags libtracefs)    -c -o src/utils.o src/utils.c\n\nsrc/utils.c:548:66: warning: \u0027fscanf\u0027 may overflow; destination buffer in argument 3 has size 1024, but the corresponding specifier may require size 1025 [-Wfortify-source]\n  548 |         while (fscanf(fp, \"%*s %\" STR(MAX_PATH) \"s %99s %*s %*d %*d\\n\", mount_point, type) == 2) {\n      |                                                                         ^\n\nIncrease mount_point variable size to MAX_PATH+1 to avoid the overflow."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: herramientas/rtla: Repare la advertencia de clang sobre el tama\u00f1o de var de mount_point clang informa esta advertencia: $ make HOSTCC=clang CC=clang LLVM_IAS=1 [...] clang -O -g -DVERSION=\\\"6.8.0-rc3\\\" -flto=auto -fExceptions -fstack-protector-strong -fasynchronous-unwind-tables -fstack-clash-protection -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE= 2 -Wp,-D_GLIBCXX_ASSERTIONS $(pkg-config --cflags libtracefs) -c -o src/utils.o src/utils.c src/utils.c:548:66: advertencia: \u0027fscanf\u0027 puede desbordarse; el b\u00fafer de destino en el argumento 3 tiene un tama\u00f1o 1024, pero el especificador correspondiente puede requerir un tama\u00f1o 1025 [-Wfortify-source] 548 | while (fscanf(fp, \"%*s %\" STR(MAX_PATH) \"s %99s %*s %*d %*d\\n\", punto_montaje, tipo) == 2) { | ^ Aumente el tama\u00f1o de la variable mount_point a MAX_PATH+1 para evitar el desbordamiento."
    }
  ],
  "id": "CVE-2024-26818",
  "lastModified": "2025-03-27T21:07:41.817",
  "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": "2024-04-17T10:15:08.757",
  "references": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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