ghsa-c62v-4w5f-p7pw
Vulnerability from github
Published
2024-11-19 03:31
Modified
2024-11-27 18:34
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

media: vivid: fix buffer overwrite when using > 32 buffers

The maximum number of buffers that can be requested was increased to 64 for the video capture queue. But video capture used a must_blank array that was still sized for 32 (VIDEO_MAX_FRAME). This caused an out-of-bounds write when using buffer indices >= 32.

Create a new define MAX_VID_CAP_BUFFERS that is used to access the must_blank array and set max_num_buffers for the video capture queue.

This solves a crash reported by:

https://bugzilla.kernel.org/show_bug.cgi?id=219258
Show details on source website

To clipboard 

{
   affected: [],
   aliases: [
      "CVE-2024-50288",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-787",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-11-19T02:16:31Z",
      severity: "MODERATE",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: vivid: fix buffer overwrite when using > 32 buffers\n\nThe maximum number of buffers that can be requested was increased to\n64 for the video capture queue. But video capture used a must_blank\narray that was still sized for 32 (VIDEO_MAX_FRAME). This caused an\nout-of-bounds write when using buffer indices >= 32.\n\nCreate a new define MAX_VID_CAP_BUFFERS that is used to access the\nmust_blank array and set max_num_buffers for the video capture queue.\n\nThis solves a crash reported by:\n\n\thttps://bugzilla.kernel.org/show_bug.cgi?id=219258",
   id: "GHSA-c62v-4w5f-p7pw",
   modified: "2024-11-27T18:34:01Z",
   published: "2024-11-19T03:31:08Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-50288",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/96d8569563916fe2f8fe17317e20e43f54f9ba4b",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/e6bacd8f2178b22859fe6d9f755f19dfcd9d3862",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
}


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