ghsa-4667-xxv8-3pq6
Vulnerability from github
Published
2024-10-21 21:30
Modified
2024-10-24 18:30
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Details

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

iio: health: afe4403: Fix oob read in afe4403_read_raw

KASAN report out-of-bounds read as follows:

BUG: KASAN: global-out-of-bounds in afe4403_read_raw+0x42e/0x4c0 Read of size 4 at addr ffffffffc02ac638 by task cat/279

Call Trace: afe4403_read_raw iio_read_channel_info dev_attr_show

The buggy address belongs to the variable: afe4403_channel_leds+0x18/0xffffffffffffe9e0

This issue can be reproduced by singe command:

$ cat /sys/bus/spi/devices/spi0.0/iio\:device0/in_intensity6_raw

The array size of afe4403_channel_leds is less than channels, so access with chan->address cause OOB read in afe4403_read_raw. Fix it by moving access before use it.

Show details on source website

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{
   affected: [],
   aliases: [
      "CVE-2022-49031",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-125",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-10-21T20:15:13Z",
      severity: "HIGH",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\niio: health: afe4403: Fix oob read in afe4403_read_raw\n\nKASAN report out-of-bounds read as follows:\n\nBUG: KASAN: global-out-of-bounds in afe4403_read_raw+0x42e/0x4c0\nRead of size 4 at addr ffffffffc02ac638 by task cat/279\n\nCall Trace:\n afe4403_read_raw\n iio_read_channel_info\n dev_attr_show\n\nThe buggy address belongs to the variable:\n afe4403_channel_leds+0x18/0xffffffffffffe9e0\n\nThis issue can be reproduced by singe command:\n\n $ cat /sys/bus/spi/devices/spi0.0/iio\\:device0/in_intensity6_raw\n\nThe array size of afe4403_channel_leds is less than channels, so access\nwith chan->address cause OOB read in afe4403_read_raw. Fix it by moving\naccess before use it.",
   id: "GHSA-4667-xxv8-3pq6",
   modified: "2024-10-24T18:30:42Z",
   published: "2024-10-21T21:30:52Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2022-49031",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/06c6ce21cec77dfa860d57e7a006000a57812efb",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/2d6a437064ffbe685c67ddb16dfc0946074c6c3f",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/58143c1ed5882c138a3cd2251a336fc8755f23d9",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/726fa3e4ab97dcff1c745bdc4fb137366cb8d3df",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/98afcb5f3be645d330c74c5194ba0d80e26f95e0",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/b1756af172fb80a3edc143772d49e166ec691b6c",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/c9268df36818ee4eaaaeadc80009b442a5ca69c9",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/e7e76a77aabef8989cbc0a8417af1aa040620867",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
}


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