CVE-2024-24898

Kernel-memory disclosure via uncleared TCM command buffer

Published Apr 15, 2024 · Updated Aug 1, 2024

Information exposure in openEuler Kernel before 4.19.90-2403.4.0.0244 allows local users to read residual TCM command data. The tcm_open function allocates an uninitialized per-open buffer, while tcm_read copies it to user space without clearing prior command results. Local access to the TCM device is required; exposure is limited to residual kernel-heap data and earlier TCM command results in releases starting at 4.19.90-2109.1.0.0108.

CVSS severity6.0
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in openEuler Kernel before 4.19.90-2403.4.0.0244 allows local users to read residual TCM command data. The tcm_open function allocates an uninitialized per-open buffer, while tcm_read copies it to user space without clearing prior command results. Local access to the TCM device is required; exposure is limited to residual kernel-heap data and earlier TCM command results in releases starting at 4.19.90-2109.1.0.0108.

The record

CVE
CVE-2024-24898
Published
Apr 15, 2024
Updated
Aug 1, 2024
Vendor
openEuler
Product
openEuler Kernel
Classifications
CWE-200
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Apr 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record 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=4.19.90-2109.1.0.0108 <4.19.90-2403.4.0.0244 changes=[{"at":"c04a1c6afc6bca0fa5739ecf4f58e4723d82e82f","status":"unaffected"},{"at":"4a049cbb02e83fdd7bd9400b6b6b27d1cda4fc99","status":"unaffected"},{"at":"08f66d6cf651fabd9dff262c300cb8cd7f8f0741","status":"unaffected"},{"at":"a3360846085a5558e5d8f9dd42a5c2e83345b4db","status":"unaffected"}]

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

openEuler · openEuler Kernelversion=4.19.90-2109.1.0.0108 <4.19.90-2403.4.0.0244 changes=[{"at":"c04a1c6afc6bca0fa5739ecf4f58e4723d82e82f","status":"unaffected"},{"at":"4a049cbb02e83fdd7bd9400b6b6b27d1cda4fc99","status":"unaffected"},{"at":"08f66d6cf651fabd9dff262c300cb8cd7f8f0741","status":"unaffected"},{"at":"a3360846085a5558e5d8f9dd42a5c2e83345b4db","status":"unaffected"}]

Published CVSS scores

6.0openEulerCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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