CVE-2024-38587 speakup: Fix sizeof() vs ARRAY_SIZE() bug

2024-06-1913:37:42

Linux

github.com

linux kernel

vulnerability

speakup

buffer overflow

fix

cve-2024-38587

7.1 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.2%

JSON

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

speakup: Fix sizeof() vs ARRAY_SIZE() bug

The “buf” pointer is an array of u16 values. This code should be
using ARRAY_SIZE() (which is 256) instead of sizeof() (which is 512),
otherwise it can the still got out of bounds.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
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        "version": "756c5cb7c09e",
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    ],
    "programFiles": [
      "drivers/accessibility/speakup/main.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.9"
      },
      {
        "status": "unaffected",
        "version": "0",
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        "versionType": "custom"
      },
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        "status": "unaffected",
        "version": "4.19.316",
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      },
      {
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        "version": "5.4.278",
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      },
      {
        "status": "unaffected",
        "version": "5.10.219",
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      {
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      {
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        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/accessibility/speakup/main.c"
    ],
    "defaultStatus": "affected"
  }
]