fkie_cve-2021-47100
Vulnerability from fkie_nvd
Published
2024-03-04 18:15
Modified
2025-02-03 13:51
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: ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module Hi, When testing install and uninstall of ipmi_si.ko and ipmi_msghandler.ko, the system crashed. The log as follows: [ 141.087026] BUG: unable to handle kernel paging request at ffffffffc09b3a5a [ 141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0 [ 141.087464] Oops: 0010 [#1] SMP NOPTI [ 141.087580] CPU: 67 PID: 668 Comm: kworker/67:1 Kdump: loaded Not tainted 4.18.0.x86_64 #47 [ 141.088009] Workqueue: events 0xffffffffc09b3a40 [ 141.088009] RIP: 0010:0xffffffffc09b3a5a [ 141.088009] Code: Bad RIP value. [ 141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246 [ 141.088009] RAX: 0000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000 [ 141.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246 [ 141.088009] RBP: 0000000000000000 R08: ffff9abfffee3cb8 R09: 00000000000002e1 [ 141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700 [ 141.088009] R13: 0000000000000000 R14: ffff9abfdb1f04a0 R15: ffff9abfdb1f04a8 [ 141.088009] FS: 0000000000000000(0000) GS:ffff9abfffec0000(0000) knlGS:0000000000000000 [ 141.088009] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 141.088009] CR2: ffffffffc09b3a30 CR3: 0000008fe4c0a001 CR4: 00000000007606e0 [ 141.088009] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 141.088009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 141.088009] PKRU: 55555554 [ 141.088009] Call Trace: [ 141.088009] ? process_one_work+0x195/0x390 [ 141.088009] ? worker_thread+0x30/0x390 [ 141.088009] ? process_one_work+0x390/0x390 [ 141.088009] ? kthread+0x10d/0x130 [ 141.088009] ? kthread_flush_work_fn+0x10/0x10 [ 141.088009] ? ret_from_fork+0x35/0x40] BUG: unable to handle kernel paging request at ffffffffc0b28a5a [ 200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0 [ 200.223464] Oops: 0010 [#1] SMP NOPTI [ 200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: loaded Not tainted 4.18.0.x86_64 #46 [ 200.224008] Workqueue: events 0xffffffffc0b28a40 [ 200.224008] RIP: 0010:0xffffffffc0b28a5a [ 200.224008] Code: Bad RIP value. [ 200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246 [ 200.224008] RAX: 0000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000 [ 200.224008] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246 [ 200.224008] RBP: 0000000000000000 R08: ffff9fe43fde3cb8 R09: 00000000000000d5 [ 200.224008] R10: ffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700 [ 200.224008] R13: 0000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8 [ 200.224008] FS: 0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:0000000000000000 [ 200.224008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0 [ 200.224008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 200.224008] PKRU: 55555554 [ 200.224008] Call Trace: [ 200.224008] ? process_one_work+0x195/0x390 [ 200.224008] ? worker_thread+0x30/0x390 [ 200.224008] ? process_one_work+0x390/0x390 [ 200.224008] ? kthread+0x10d/0x130 [ 200.224008] ? kthread_flush_work_fn+0x10/0x10 [ 200.224008] ? ret_from_fork+0x35/0x40 [ 200.224008] kernel fault(0x1) notification starting on CPU 63 [ 200.224008] kernel fault(0x1) notification finished on CPU 63 [ 200.224008] CR2: ffffffffc0b28a5a [ 200.224008] ---[ end trace c82a412d93f57412 ]--- The reason is as follows: T1: rmmod ipmi_si. ->ipmi_unregister_smi() -> ipmi_bmc_unregister() -> __ipmi_bmc_unregister() -> kref_put(&bmc->usecount, cleanup_bmc_device); -> schedule_work(&bmc->remove_work); T2: rmmod ipmi_msghandl ---truncated---
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6809da5185141e61401da5b01896b79a4deed1adPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6b3f7e4b10f343f05b5fb513b07a9168fbf1172ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/925229d552724e1bba1abf01d3a0b1318539b012Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/992649b8b16843d27eb39ceea5f9cf85ffb50a18Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ffb76a86f8096a8206be03b14adda6092e18e275Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6809da5185141e61401da5b01896b79a4deed1adPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6b3f7e4b10f343f05b5fb513b07a9168fbf1172ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/925229d552724e1bba1abf01d3a0b1318539b012Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/992649b8b16843d27eb39ceea5f9cf85ffb50a18Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ffb76a86f8096a8206be03b14adda6092e18e275Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module\n\nHi,\n\nWhen testing install and uninstall of ipmi_si.ko and ipmi_msghandler.ko,\nthe system crashed.\n\nThe log as follows:\n[  141.087026] BUG: unable to handle kernel paging request at ffffffffc09b3a5a\n[  141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0\n[  141.087464] Oops: 0010 [#1] SMP NOPTI\n[  141.087580] CPU: 67 PID: 668 Comm: kworker/67:1 Kdump: loaded Not tainted 4.18.0.x86_64 #47\n[  141.088009] Workqueue: events 0xffffffffc09b3a40\n[  141.088009] RIP: 0010:0xffffffffc09b3a5a\n[  141.088009] Code: Bad RIP value.\n[  141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246\n[  141.088009] RAX: 0000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000\n[  141.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246\n[  141.088009] RBP: 0000000000000000 R08: ffff9abfffee3cb8 R09: 00000000000002e1\n[  141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700\n[  141.088009] R13: 0000000000000000 R14: ffff9abfdb1f04a0 R15: ffff9abfdb1f04a8\n[  141.088009] FS:  0000000000000000(0000) GS:ffff9abfffec0000(0000) knlGS:0000000000000000\n[  141.088009] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  141.088009] CR2: ffffffffc09b3a30 CR3: 0000008fe4c0a001 CR4: 00000000007606e0\n[  141.088009] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  141.088009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[  141.088009] PKRU: 55555554\n[  141.088009] Call Trace:\n[  141.088009]  ? process_one_work+0x195/0x390\n[  141.088009]  ? worker_thread+0x30/0x390\n[  141.088009]  ? process_one_work+0x390/0x390\n[  141.088009]  ? kthread+0x10d/0x130\n[  141.088009]  ? kthread_flush_work_fn+0x10/0x10\n[  141.088009]  ? ret_from_fork+0x35/0x40] BUG: unable to handle kernel paging request at ffffffffc0b28a5a\n[  200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0\n[  200.223464] Oops: 0010 [#1] SMP NOPTI\n[  200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: loaded Not tainted 4.18.0.x86_64 #46\n[  200.224008] Workqueue: events 0xffffffffc0b28a40\n[  200.224008] RIP: 0010:0xffffffffc0b28a5a\n[  200.224008] Code: Bad RIP value.\n[  200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246\n[  200.224008] RAX: 0000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000\n[  200.224008] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246\n[  200.224008] RBP: 0000000000000000 R08: ffff9fe43fde3cb8 R09: 00000000000000d5\n[  200.224008] R10: ffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700\n[  200.224008] R13: 0000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8\n[  200.224008] FS:  0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:0000000000000000\n[  200.224008] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0\n[  200.224008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[  200.224008] PKRU: 55555554\n[  200.224008] Call Trace:\n[  200.224008]  ? process_one_work+0x195/0x390\n[  200.224008]  ? worker_thread+0x30/0x390\n[  200.224008]  ? process_one_work+0x390/0x390\n[  200.224008]  ? kthread+0x10d/0x130\n[  200.224008]  ? kthread_flush_work_fn+0x10/0x10\n[  200.224008]  ? ret_from_fork+0x35/0x40\n[  200.224008] kernel fault(0x1) notification starting on CPU 63\n[  200.224008] kernel fault(0x1) notification finished on CPU 63\n[  200.224008] CR2: ffffffffc0b28a5a\n[  200.224008] ---[ end trace c82a412d93f57412 ]---\n\nThe reason is as follows:\nT1: rmmod ipmi_si.\n    -\u003eipmi_unregister_smi()\n        -\u003e ipmi_bmc_unregister()\n            -\u003e __ipmi_bmc_unregister()\n                -\u003e kref_put(\u0026bmc-\u003eusecount, cleanup_bmc_device);\n                    -\u003e schedule_work(\u0026bmc-\u003eremove_work);\n\nT2: rmmod ipmi_msghandl\n---truncated---"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ipmi: corrige UAF al desinstalar los m\u00f3dulos ipmi_si e ipmi_msghandler Hola. Al probar la instalaci\u00f3n y desinstalaci\u00f3n de ipmi_si.ko e ipmi_msghandler.ko, el sistema fall\u00f3. El registro es el siguiente: [141.087026] ERROR: no se puede manejar la solicitud de paginaci\u00f3n del kernel en ffffffffc09b3a5a [141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0 [141.087464] Vaya s: 0010 [#1] SMP NOPTI [ 141.087580] CPU: 67 PID : 668 Comm: kworker/67:1 Kdump: cargado No contaminado 4.18.0.x86_64 #47 [ 141.088009] Cola de trabajo: eventos 0xffffffffc09b3a40 [ 141.088009] RIP: 0010:0xffffffffc09b3a5a [ 141.088009] C\u00f3digo: Valor RIP incorrecto. [ 141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246 [ 141.088009] RAX: 00000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000 [ 14 1.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246 [ 141.088009] RBP: 000000000000000000 R08: ffff9abfffee3cb8 R09: 00 000000000002e1 [141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700 [ 141.088009] R13: 00000000000000000 R14: ffff9abfdb1f04a0 R15: ffff9abfdb1f04a8 [ 141.088009] FS: 0000000000000000(0000) GS:ffff9abfffec0000(0000) knlGS:0000000000000000 [ 141.088009] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 141.088009] CR2: ffffffffc09b3a30 CR3: 0000008fe4c0a001 CR4: 00000000007606e0 [ 141.088009] DR0: 00000000000000 00 DR1: 0000000000000000 DR2: 00000000000000000 [ 141.088009] DR3: 0000000000000000 DR6: 00000000ffe0ff0 DR7: 0000000000000400 [ 141.088009] PKRU: 55555554 [ 141.088009] Llamar Seguimiento: [141.088009]? proceso_one_work+0x195/0x390 [141.088009]? hilo_trabajador+0x30/0x390 [141.088009]? proceso_one_work+0x390/0x390 [141.088009]? kthread+0x10d/0x130 [141.088009]? kthread_flush_work_fn+0x10/0x10 [141.088009]? ret_from_fork+0x35/0x40] ERROR: no se puede manejar la solicitud de paginaci\u00f3n del kernel en ffffffffc0b28a5a [200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0 [200.223464] Vaya : 0010 [#1] SMP NOPTI [ 200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: cargado No contaminado 4.18.0.x86_64 #46 [200.224008] Cola de trabajo: eventos 0xffffffffc0b28a40 [200.224008] RIP: 0010:0xffffffffc0b28a5a [200.224008] C\u00f3digo: RIP incorrecto valor. [ 200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246 [ 200.224008] RAX: 00000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000 [ 200 .224008] RDX: 0000000000000000 RSI: 00000000000000246 RDI: 0000000000000246 [ 200.224008] RBP: 00000000000000000 R08: ffff9fe43fde3cb8 R09: 00 000000000000d5 [200.224008] R10: fffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700 [ 200.224008] R13: 00000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8 [ 200.224008] FS: 0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:00000000000000000 [ 200.224008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0 [ 200.224008] DR0: 00000000000000 00 DR1: 0000000000000000 DR2: 00000000000000000 [ 200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 200.224008] PKRU: 55555554 [ 200.224008] Llamar Seguimiento: [200.224008] ? proceso_one_work+0x195/0x390 [200.224008]? hilo_trabajador+0x30/0x390 [200.224008]? proceso_one_work+0x390/0x390 [200.224008]? kthread+0x10d/0x130 [200.224008]? kthread_flush_work_fn+0x10/0x10 [200.224008]? ret_from_fork+0x35/0x40 [200.224008] Notificaci\u00f3n de falla del kernel (0x1) que comienza en la CPU 63 [200.224008] Notificaci\u00f3n de falla del kernel (0x1) finalizada en la CPU 63 [200.224008] CR2: ffffffffc0b28a5a [200.224008] ---[ end trace c82a41 2d93f57412 ]-- - El motivo es el siguiente: T1: rmmod ipmi_si. -\u0026gt;ipmi_unregister_smi() -\u0026gt; ipmi_bmc_unregister() -\u0026gt; __ipmi_bmc_unregister() -\u0026gt; kref_put(\u0026amp;bmc-\u0026gt;usecount, cleanup_bmc_device); -\u0026gt; programar_trabajo(\u0026amp;bmc-\u0026gt;remove_work); T2: rmmod ipmi_msghandl"
    }
  ],
  "id": "CVE-2021-47100",
  "lastModified": "2025-02-03T13:51:24.110",
  "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": "2024-03-04T18:15:08.267",
  "references": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ffb76a86f8096a8206be03b14adda6092e18e275"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • 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.