7.8

CVE-2024-38587: linux Improper Validation of Array Index

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2024-38587DEBIAN-CVE-2024-38587
Published 19-06-2024Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2024-38587 is a high (CVSS 7.8) Improper Validation of Array Index vulnerability in linux. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.79%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 28 · Related 24
DLA-3840-1DSA-5730-1MGASA-2024-0263MGASA-2024-0266SUSE-SU-2024:2372-1SUSE-SU-2024:2394-1

Timeline

  1. 19-06-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.79%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

0.00 pp

From 0.79% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.79%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu110 products
  • linux< 5.4.0-192.212 | < 5.15.0-121.131 | < 6.8.0-40.40
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1130.140 | < 5.15.0-1069.75 | < 6.8.0-1013.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 756c5cb7c09e537b87b5d3acafcb101b2ccf394f, < 42f0a3f67158ed6b2908d2b9ffbf7e96d23fd358 | ≥ 8f6b62125befe1675446923e4171eac2c012959c, < cd7f3978c2ec741aedd1d860b2adb227314cf996 | ≥ 6401038acfa24cba9c28cce410b7505efadd0222, < 07ef95cc7a579731198c93beed281e3a79a0e586 | ≥ 0d130158db29f5e0b3893154908cf618896450a8, < 504178fb7d9f6cdb0496d5491efb05f45597e535 | ≥ 89af25bd4b4bf6a71295f07e07a8ae7dc03c6595, < 3726f75a1ccc16cd335c0ccfad1d92ee08ecba5e | ≥ 8defb1d22ba0395b81feb963b96e252b097ba76f, < c6e1650cf5df1bd6638eeee231a683ef30c7d4eb | ≥ 0efb15c14c493263cb3a5f65f5ddfd4603d19a76, < eb1ea64328d4cc7d7a912c563f8523d5259716ef | ≥ c8d2f34ea96ea3bce6ba2535f867f0d4ee3b22e1, < d52c04474feac8e305814a5228e622afe481b2ef | ≥ c8d2f34ea96ea3bce6ba2535f867f0d4ee3b22e1, < 008ab3c53bc4f0b2f20013c8f6c204a3203d0b8b | ≥ 4.19.313, < 4.19.316 | ≥ 5.4.275, < 5.4.278 | ≥ 5.10.216, < 5.10.219 | ≥ 5.15.157, < 5.15.161 | ≥ 6.1.88, < 6.1.93 | ≥ 6.6.29, < 6.6.33 | ≥ 6.8.8, < 6.8.12 | 6.9
  • linux_kernel≥ 4.19.313, < 4.19.316 | ≥ 5.4.275, < 5.4.278 | ≥ 5.10.216, < 5.10.219 | ≥ 5.15.157, < 5.15.161 | ≥ 6.1.88, < 6.1.93 | ≥ 6.6.29, < 6.6.33 | ≥ 6.8.8, < 6.8.12 | ≥ 6.9, < 6.9.3
Debian1 product
  • linux< 6.1.94-1 | < 6.8.12-1

3 vendors · 113 products

References

32 links
Show all 32 references