nvd-json-data-feeds/CVE-2024/CVE-2024-467xx/CVE-2024-46798.json

{
  "id": "CVE-2024-46798",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-09-18T08:15:06.463",
  "lastModified": "2024-09-20T18:17:50.763",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: dapm: Fix UAF for snd_soc_pcm_runtime object\n\nWhen using kernel with the following extra config,\n\n  - CONFIG_KASAN=y\n  - CONFIG_KASAN_GENERIC=y\n  - CONFIG_KASAN_INLINE=y\n  - CONFIG_KASAN_VMALLOC=y\n  - CONFIG_FRAME_WARN=4096\n\nkernel detects that snd_pcm_suspend_all() access a freed\n'snd_soc_pcm_runtime' object when the system is suspended, which\nleads to a use-after-free bug:\n\n[   52.047746] BUG: KASAN: use-after-free in snd_pcm_suspend_all+0x1a8/0x270\n[   52.047765] Read of size 1 at addr ffff0000b9434d50 by task systemd-sleep/2330\n\n[   52.047785] Call trace:\n[   52.047787]  dump_backtrace+0x0/0x3c0\n[   52.047794]  show_stack+0x34/0x50\n[   52.047797]  dump_stack_lvl+0x68/0x8c\n[   52.047802]  print_address_description.constprop.0+0x74/0x2c0\n[   52.047809]  kasan_report+0x210/0x230\n[   52.047815]  __asan_report_load1_noabort+0x3c/0x50\n[   52.047820]  snd_pcm_suspend_all+0x1a8/0x270\n[   52.047824]  snd_soc_suspend+0x19c/0x4e0\n\nThe snd_pcm_sync_stop() has a NULL check on 'substream->runtime' before\nmaking any access. So we need to always set 'substream->runtime' to NULL\neverytime we kfree() it."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ASoC: dapm: Corregir UAF para el objeto snd_soc_pcm_runtime Cuando se usa el kernel con la siguiente configuraci\u00f3n adicional, - CONFIG_KASAN=y - CONFIG_KASAN_GENERIC=y - CONFIG_KASAN_INLINE=y - CONFIG_KASAN_VMALLOC=y - CONFIG_FRAME_WARN=4096 el kernel detecta que snd_pcm_suspend_all() accede a un objeto 'snd_soc_pcm_runtime' liberado cuando el sistema est\u00e1 suspendido, lo que conduce a un error de use after free: [ 52.047746] ERROR: KASAN: use after free en snd_pcm_suspend_all+0x1a8/0x270 [ 52.047765] Lectura de tama\u00f1o 1 en la direcci\u00f3n ffff0000b9434d50 por la tarea systemd-sleep/2330 [ 52.047785] Seguimiento de llamadas: [ 52.047787] dump_backtrace+0x0/0x3c0 [ 52.047794] show_stack+0x34/0x50 [ 52.047797] dump_stack_lvl+0x68/0x8c [ 52.047802] print_address_description.constprop.0+0x74/0x2c0 [ 52.047809] kasan_report+0x210/0x230 [ 52.047815] __asan_report_load1_noabort+0x3c/0x50 [ 52.047820] snd_pcm_suspend_all+0x1a8/0x270 [ 52.047824] snd_soc_suspend+0x19c/0x4e0 La funci\u00f3n snd_pcm_sync_stop() tiene una comprobaci\u00f3n NULL en 'substream->runtime' antes de realizar cualquier acceso. Por lo tanto, siempre debemos establecer 'substream->runtime' en NULL cada vez que lo ejecutamos con kfree()."
    }
  ],
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      {
        "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
      }
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      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
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