nvd-json-data-feeds/CVE-2023/CVE-2023-526xx/CVE-2023-52621.json

{
  "id": "CVE-2023-52621",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-03-26T18:15:08.817",
  "lastModified": "2025-03-17T15:20:01.240",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check rcu_read_lock_trace_held() before calling bpf map helpers\n\nThese three bpf_map_{lookup,update,delete}_elem() helpers are also\navailable for sleepable bpf program, so add the corresponding lock\nassertion for sleepable bpf program, otherwise the following warning\nwill be reported when a sleepable bpf program manipulates bpf map under\ninterpreter mode (aka bpf_jit_enable=0):\n\n  WARNING: CPU: 3 PID: 4985 at kernel/bpf/helpers.c:40 ......\n  CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......\n  RIP: 0010:bpf_map_lookup_elem+0x54/0x60\n  ......\n  Call Trace:\n   <TASK>\n   ? __warn+0xa5/0x240\n   ? bpf_map_lookup_elem+0x54/0x60\n   ? report_bug+0x1ba/0x1f0\n   ? handle_bug+0x40/0x80\n   ? exc_invalid_op+0x18/0x50\n   ? asm_exc_invalid_op+0x1b/0x20\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\n   ? rcu_lockdep_current_cpu_online+0x65/0xb0\n   ? rcu_is_watching+0x23/0x50\n   ? bpf_map_lookup_elem+0x54/0x60\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\n   ___bpf_prog_run+0x513/0x3b70\n   __bpf_prog_run32+0x9d/0xd0\n   ? __bpf_prog_enter_sleepable_recur+0xad/0x120\n   ? __bpf_prog_enter_sleepable_recur+0x3e/0x120\n   bpf_trampoline_6442580665+0x4d/0x1000\n   __x64_sys_getpgid+0x5/0x30\n   ? do_syscall_64+0x36/0xb0\n   entry_SYSCALL_64_after_hwframe+0x6e/0x76\n   </TASK>"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: verifique rcu_read_lock_trace_held() antes de llamar a los ayudantes de mapas de bpf. Estos tres ayudantes de bpf_map_{lookup,update,delete}_elem() tambi\u00e9n est\u00e1n disponibles para el programa bpf que se puede dormir, as\u00ed que agregue el bloqueo correspondiente. aserci\u00f3n para el programa bpf con capacidad para dormir; de lo contrario, se informar\u00e1 la siguiente advertencia cuando un programa bpf con capacidad para dormir manipule el mapa bpf en modo int\u00e9rprete (tambi\u00e9n conocido como bpf_jit_enable=0): ADVERTENCIA: CPU: 3 PID: 4985 en kernel/bpf/helpers.c:40. ..... CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996) ...... RIP: 0010:bpf_map_lookup_elem+0x54/0x60 ...... Seguimiento de llamadas:  ? __advertir+0xa5/0x240 ? bpf_map_lookup_elem+0x54/0x60? report_bug+0x1ba/0x1f0? handle_bug+0x40/0x80? exc_invalid_op+0x18/0x50? asm_exc_invalid_op+0x1b/0x20? __pfx_bpf_map_lookup_elem+0x10/0x10 ? rcu_lockdep_current_cpu_online+0x65/0xb0? rcu_is_watching+0x23/0x50? bpf_map_lookup_elem+0x54/0x60? __pfx_bpf_map_lookup_elem+0x10/0x10 ___bpf_prog_run+0x513/0x3b70 __bpf_prog_run32+0x9d/0xd0 ? __bpf_prog_enter_sleepable_recur+0xad/0x120 ? __bpf_prog_enter_sleepable_recur+0x3e/0x120 bpf_trampoline_6442580665+0x4d/0x1000 __x64_sys_getpgid+0x5/0x30 ? do_syscall_64+0x36/0xb0 entrada_SYSCALL_64_after_hwframe+0x6e/0x76 "
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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