{"id":"CVE-2024-38587","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nspeakup: Fix sizeof() vs ARRAY_SIZE() bug\n\nThe \"buf\" pointer is an array of u16 values","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nspeakup: Fix sizeof() vs ARRAY_SIZE() bug\n\nThe \"buf\" pointer is an array of u16 values.  This code should be\nusing ARRAY_SIZE() (which is 256) instead of sizeof() (whic…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-129"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.19.313, < 4.19.316","linux_kernel >= 5.4.275, < 5.4.278","linux_kernel >= 5.10.216, < 5.10.219","linux_kernel >= 5.15.157, < 5.15.161","linux_kernel >= 6.1.88, < 6.1.93","linux_kernel >= 6.6.29, < 6.6.33","linux_kernel >= 6.8.8, < 6.8.12","linux_kernel >= 6.9, < 6.9.3"],"patched":["linux_kernel 6.9.3"],"published":"2024-06-19","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:18:30.113","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-38587","references":[{"url":"https://git.kernel.org/stable/c/008ab3c53bc4f0b2f20013c8f6c204a3203d0b8b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/07ef95cc7a579731198c93beed281e3a79a0e586","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3726f75a1ccc16cd335c0ccfad1d92ee08ecba5e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/42f0a3f67158ed6b2908d2b9ffbf7e96d23fd358","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/504178fb7d9f6cdb0496d5491efb05f45597e535","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c6e1650cf5df1bd6638eeee231a683ef30c7d4eb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cd7f3978c2ec741aedd1d860b2adb227314cf996","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d52c04474feac8e305814a5228e622afe481b2ef","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/eb1ea64328d4cc7d7a912c563f8523d5259716ef","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/008ab3c53bc4f0b2f20013c8f6c204a3203d0b8b","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/07ef95cc7a579731198c93beed281e3a79a0e586","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/3726f75a1ccc16cd335c0ccfad1d92ee08ecba5e","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/42f0a3f67158ed6b2908d2b9ffbf7e96d23fd358","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/504178fb7d9f6cdb0496d5491efb05f45597e535","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/c6e1650cf5df1bd6638eeee231a683ef30c7d4eb","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/cd7f3978c2ec741aedd1d860b2adb227314cf996","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/d52c04474feac8e305814a5228e622afe481b2ef","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/eb1ea64328d4cc7d7a912c563f8523d5259716ef","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-613116.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00788,"epssPercentile":0.55185,"ingestedAt":"2026-10-15T03:30:12.707Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-06-20T14:49:14.118323Z"},"slug":"CVE-2024-38587","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nspeakup: Fix sizeof() vs ARRAY_SIZE() bug\n\nThe \"buf\" pointer is an array of u16 values.  This code should be\nusing ARRAY_SIZE() (which is 256) instead of sizeof() (which is 512),\notherwise it can the still got out of bounds.\n\n## Affected\n\n- `linux_kernel >= 4.19.313, < 4.19.316`\n- `linux_kernel >= 5.4.275, < 5.4.278`\n- `linux_kernel >= 5.10.216, < 5.10.219`\n- `linux_kernel >= 5.15.157, < 5.15.161`\n- `linux_kernel >= 6.1.88, < 6.1.93`\n- `linux_kernel >= 6.6.29, < 6.6.33`\n- `linux_kernel >= 6.8.8, < 6.8.12`\n- `linux_kernel >= 6.9, < 6.9.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.9.3`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}