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CVE-2024-38587speakup: Fix sizeof() vs ARRAY_SIZE() bug
- 7.8HighCVSS base score
- 0.79%Exploitation in 30 daysEPSS · top 43% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CISA-ADPADP (enrichment) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.79% · top 43% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 756c5cb7c09e537b87b5d3acafcb101b2ccf394f – < 42f0a3f67158ed6b2908d2b9ffbf7e96d23fd358
- affected 8f6b62125befe1675446923e4171eac2c012959c – < cd7f3978c2ec741aedd1d860b2adb227314cf996
- affected 6401038acfa24cba9c28cce410b7505efadd0222 – < 07ef95cc7a579731198c93beed281e3a79a0e586
- affected 0d130158db29f5e0b3893154908cf618896450a8 – < 504178fb7d9f6cdb0496d5491efb05f45597e535
- affected 89af25bd4b4bf6a71295f07e07a8ae7dc03c6595 – < 3726f75a1ccc16cd335c0ccfad1d92ee08ecba5e
- affected 8defb1d22ba0395b81feb963b96e252b097ba76f – < c6e1650cf5df1bd6638eeee231a683ef30c7d4eb
- affected 0efb15c14c493263cb3a5f65f5ddfd4603d19a76 – < eb1ea64328d4cc7d7a912c563f8523d5259716ef
- affected c8d2f34ea96ea3bce6ba2535f867f0d4ee3b22e1 – < d52c04474feac8e305814a5228e622afe481b2ef
- affected c8d2f34ea96ea3bce6ba2535f867f0d4ee3b22e1 – < 008ab3c53bc4f0b2f20013c8f6c204a3203d0b8b
- affected 4.19.313 – < 4.19.316
- affected 5.4.275 – < 5.4.278
- affected 5.10.216 – < 5.10.219
- affected 5.15.157 – < 5.15.161
- affected 6.1.88 – < 6.1.93
- affected 6.6.29 – < 6.6.33
- affected 6.8.8 – < 6.8.12
- affected 6.9
- unaffected < 6.9
- unaffected 4.19.316 – ≤ 4.19.*
- unaffected 5.4.278 – ≤ 5.4.*
- unaffected 5.10.219 – ≤ 5.10.*
- unaffected 5.15.161 – ≤ 5.15.*
- unaffected 6.1.93 – ≤ 6.1.*
- unaffected 6.6.33 – ≤ 6.6.*
- unaffected 6.8.12 – ≤ 6.8.*
- unaffected 6.9.3 – ≤ 6.9.*
- unaffected 6.10 – ≤ *
References
References12
- https://git.kernel.org/stable/c/42f0a3f67158ed6b2908d2b9ffbf7e96d23fd358 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/cd7f3978c2ec741aedd1d860b2adb227314cf996 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/07ef95cc7a579731198c93beed281e3a79a0e586 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/504178fb7d9f6cdb0496d5491efb05f45597e535 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/3726f75a1ccc16cd335c0ccfad1d92ee08ecba5e (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/c6e1650cf5df1bd6638eeee231a683ef30c7d4eb (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/eb1ea64328d4cc7d7a912c563f8523d5259716ef (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/d52c04474feac8e305814a5228e622afe481b2ef (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/008ab3c53bc4f0b2f20013c8f6c204a3203d0b8b (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-37450 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-38587)Record last updated .