GHSA-45HJ-5GPJ-93H8

Vulnerability from github – Published: 2024-05-22 09:31 – Updated: 2024-07-03 18:43
VLAI?
Details

In the Linux kernel, the following vulnerability has been resolved:

can: peak_pci: peak_pci_remove(): fix UAF

When remove the module peek_pci, referencing 'chan' again after releasing 'dev' will cause UAF.

Fix this by releasing 'dev' later.

The following log reveals it:

[ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537 [ 35.965513 ] Call Trace: [ 35.965718 ] dump_stack_lvl+0xa8/0xd1 [ 35.966028 ] print_address_description+0x87/0x3b0 [ 35.966420 ] kasan_report+0x172/0x1c0 [ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170 [ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.967945 ] __asan_report_load8_noabort+0x14/0x20 [ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.968752 ] pci_device_remove+0xa9/0x250

Severity ?
8.4 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2021-47456"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-22T07:15:10Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_pci: peak_pci_remove(): fix UAF\n\nWhen remove the module peek_pci, referencing \u0027chan\u0027 again after\nreleasing \u0027dev\u0027 will cause UAF.\n\nFix this by releasing \u0027dev\u0027 later.\n\nThe following log reveals it:\n\n[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537\n[   35.965513 ] Call Trace:\n[   35.965718 ]  dump_stack_lvl+0xa8/0xd1\n[   35.966028 ]  print_address_description+0x87/0x3b0\n[   35.966420 ]  kasan_report+0x172/0x1c0\n[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170\n[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.967945 ]  __asan_report_load8_noabort+0x14/0x20\n[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.968752 ]  pci_device_remove+0xa9/0x250",
  "id": "GHSA-45hj-5gpj-93h8",
  "modified": "2024-07-03T18:43:06Z",
  "published": "2024-05-22T09:31:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47456"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.