cve-2024-38574
Vulnerability from cvelistv5
Published
2024-06-19 13:35
Modified
2024-11-05 09:30
Severity ?
Summary
libbpf: Prevent null-pointer dereference when prog to load has no BTF
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T04:12:25.946Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fb"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-38574",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T17:14:12.770831Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:34:55.918Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "tools/lib/bpf/libbpf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ef80b59acfa4",
              "status": "affected",
              "version": "df7c3f7d3a3d",
              "versionType": "git"
            },
            {
              "lessThan": "1fd91360a758",
              "status": "affected",
              "version": "df7c3f7d3a3d",
              "versionType": "git"
            },
            {
              "lessThan": "9bf48fa19a4b",
              "status": "affected",
              "version": "df7c3f7d3a3d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "tools/lib/bpf/libbpf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.9.*",
              "status": "unaffected",
              "version": "6.9.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.10",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibbpf: Prevent null-pointer dereference when prog to load has no BTF\n\nIn bpf_objec_load_prog(), there\u0027s no guarantee that obj-\u003ebtf is non-NULL\nwhen passing it to btf__fd(), and this function does not perform any\ncheck before dereferencing its argument (as bpf_object__btf_fd() used to\ndo). As a consequence, we get segmentation fault errors in bpftool (for\nexample) when trying to load programs that come without BTF information.\n\nv2: Keep btf__fd() in the fix instead of reverting to bpf_object__btf_fd()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-05T09:30:11.109Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104"
        },
        {
          "url": "https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0"
        },
        {
          "url": "https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fb"
        }
      ],
      "title": "libbpf: Prevent null-pointer dereference when prog to load has no BTF",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-38574",
    "datePublished": "2024-06-19T13:35:39.015Z",
    "dateReserved": "2024-06-18T19:36:34.924Z",
    "dateUpdated": "2024-11-05T09:30:11.109Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-38574\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-19T14:15:17.520\",\"lastModified\":\"2024-06-20T12:44:01.637\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nlibbpf: Prevent null-pointer dereference when prog to load has no BTF\\n\\nIn bpf_objec_load_prog(), there\u0027s no guarantee that obj-\u003ebtf is non-NULL\\nwhen passing it to btf__fd(), and this function does not perform any\\ncheck before dereferencing its argument (as bpf_object__btf_fd() used to\\ndo). As a consequence, we get segmentation fault errors in bpftool (for\\nexample) when trying to load programs that come without BTF information.\\n\\nv2: Keep btf__fd() in the fix instead of reverting to bpf_object__btf_fd().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: libbpf: evita la desreferencia del puntero nulo cuando el programa a cargar no tiene BTF. En bpf_objec_load_prog(), no hay garant\u00eda de que obj-\u0026gt;btf no sea NULL al pasarlo a btf__fd() , y esta funci\u00f3n no realiza ninguna verificaci\u00f3n antes de eliminar la referencia a su argumento (como sol\u00eda hacer bpf_object__btf_fd()). Como consecuencia, obtenemos errores de segmentaci\u00f3n en bpftool (por ejemplo) cuando intentamos cargar programas que vienen sin informaci\u00f3n BTF. v2: Mantenga btf__fd() en la soluci\u00f3n en lugar de volver a bpf_object__btf_fd().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading...

Loading...

Loading...
  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.