CVE-2024-42301

Local kernel compromise via parport procfs overflow

Published Aug 17, 2024 · Updated Aug 5, 2026

Stack buffer overflow in the Linux parport procfs interface allows local users to compromise the kernel through file reads. The do_hardware_base_addr and do_autoprobe handlers use unbounded formatting to copy address or Device ID data into fixed-size stack buffers. Any local account that can read the affected read-only procfs entries can trigger kernel-stack corruption, resulting in a system crash or kernel control-flow compromise.

CVSS severity7.8
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack buffer overflow in the Linux parport procfs interface allows local users to compromise the kernel through file reads. The do_hardware_base_addr and do_autoprobe handlers use unbounded formatting to copy address or Device ID data into fixed-size stack buffers. Any local account that can read the affected read-only procfs entries can trigger kernel-stack corruption, resulting in a system crash or kernel control-flow compromise.

The record

CVE
CVE-2024-42301
Published
Aug 17, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <166a0bddcc27de41fe13f861c8348e8e53e988c8
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <47b3dce100778001cd76f7e9188944b5cb27a76d
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7789a1d6792af410aa9b39a1eb237ed24fa2170a
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7f4da759092a1a6ce35fb085182d02de8cc4cc84
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a44f88f7576bc1916d8d6293f5c62fbe7cbe03e0
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ab11dac93d2d568d151b1918d7b84c2d02bacbd5
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b579ea3516c371ecf59d073772bc45dfd28c8a0e
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c719b393374d3763e64900ee19aaed767d5a08d6
  9. Affected versionversion=2.6.12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <166a0bddcc27de41fe13f861c8348e8e53e988c8; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <47b3dce100778001cd76f7e9188944b5cb27a76d; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7789a1d6792af410aa9b39a1eb237ed24fa2170a; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7f4da759092a1a6ce35fb085182d02de8cc4cc84; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a44f88f7576bc1916d8d6293f5c62fbe7cbe03e0; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ab11dac93d2d568d151b1918d7b84c2d02bacbd5; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b579ea3516c371ecf59d073772bc45dfd28c8a0e; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c719b393374d3763e64900ee19aaed767d5a08d6; version=2.6.12

Published CVSS scores

7.8Linux Kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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