fkie_cve-2024-42151
Vulnerability from fkie_nvd
Published
2024-07-30 08:15
Modified
2024-12-09 23:09
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: mark bpf_dummy_struct_ops.test_1 parameter as nullable Test case dummy_st_ops/dummy_init_ret_value passes NULL as the first parameter of the test_1() function. Mark this parameter as nullable to make verifier aware of such possibility. Otherwise, NULL check in the test_1() code: SEC("struct_ops/test_1") int BPF_PROG(test_1, struct bpf_dummy_ops_state *state) { if (!state) return ...; ... access state ... } Might be removed by verifier, thus triggering NULL pointer dereference under certain conditions.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23Patch
Impacted products
Vendor Product Version
linux linux_kernel *


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "EDD11F94-D8F3-477D-931C-7806D6E5D6D3",
                     versionEndExcluding: "6.9.9",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable\n\nTest case dummy_st_ops/dummy_init_ret_value passes NULL as the first\nparameter of the test_1() function. Mark this parameter as nullable to\nmake verifier aware of such possibility.\nOtherwise, NULL check in the test_1() code:\n\n      SEC(\"struct_ops/test_1\")\n      int BPF_PROG(test_1, struct bpf_dummy_ops_state *state)\n      {\n            if (!state)\n                    return ...;\n\n            ... access state ...\n      }\n\nMight be removed by verifier, thus triggering NULL pointer dereference\nunder certain conditions.",
      },
      {
         lang: "es",
         value: "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: marcar el parámetro bpf_dummy_struct_ops.test_1 como anulable Caso de prueba dummy_st_ops/dummy_init_ret_value pasa NULL como primer parámetro de la función test_1(). Marque este parámetro como anulable para que el verificador sea consciente de tal posibilidad. De lo contrario, NULL verifica el código test_1(): SEC(\"struct_ops/test_1\") int BPF_PROG(test_1, struct bpf_dummy_ops_state *state) { if (!state) return...; ... estado de acceso ... } El verificador podría eliminarlo, lo que provocaría la desreferencia del puntero NULL bajo ciertas condiciones.",
      },
   ],
   id: "CVE-2024-42151",
   lastModified: "2024-12-09T23:09:53.587",
   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: "2024-07-30T08:15:06.690",
   references: [
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087d",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087d",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23",
      },
   ],
   sourceIdentifier: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
   vulnStatus: "Analyzed",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-476",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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