CVE-2024-58005

Kernel service interruption via oversized TPM allocation

Published Feb 27, 2025 · Updated Jul 14, 2026

Improper input validation in Linux TPM ACPI event-log handling allows local users to interrupt service through an oversized firmware log. In drivers/char/tpm/eventlog/acpi.c, the kernel passes an ACPI-reported 16 MiB event-log size to devm_kmalloc(), forcing a high-order contiguous allocation instead of a virtually contiguous allocation. Reachability requires TPM event-log initialization on hardware whose ACPI table advertises the oversized region; the observed result is an allocation warning and failed log-buffer setup during startup.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Linux TPM ACPI event-log handling allows local users to interrupt service through an oversized firmware log. In drivers/char/tpm/eventlog/acpi.c, the kernel passes an ACPI-reported 16 MiB event-log size to devm_kmalloc(), forcing a high-order contiguous allocation instead of a virtually contiguous allocation. Reachability requires TPM event-log initialization on hardware whose ACPI table advertises the oversized region; the observed result is an allocation warning and failed log-buffer setup during startup.

The record

CVE
CVE-2024-58005
Published
Feb 27, 2025
Updated
Jul 14, 2026
Vendor
Siemens
Product
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
Classifications
CWE-20, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 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=V3.1.5 <*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SIPLUS S7-1500 CPU 1518-4 PN/DP MFPversion=V3.1.5 <*
Siemens · SIMATIC S7-1500 TM MFP - GNU/Linux subsystemversion=0 <*
The Linux Kernel Organization · Linuxversion=2.6.16; version=55a82ab3181be039c6440d3f2f69260ad6fe2988 <0621d2599d6e02d05c85d6bbd58eaea2f15b3503; version=55a82ab3181be039c6440d3f2f69260ad6fe2988 <422d7f4e8d817be467986589c7968d3ea402f7da; version=55a82ab3181be039c6440d3f2f69260ad6fe2988 <4c8bfe643bbd00b04ee8f9545ef33bf6a68c38db; version=55a82ab3181be039c6440d3f2f69260ad6fe2988 <50365a6304a57266e8f4d3078060743c3b7a1e0d; version=55a82ab3181be039c6440d3f2f69260ad6fe2988 <77779d1258a287f2c5c2c6aeae203e0996209c77; version=55a82ab3181be039c6440d3f2f69260ad6fe2988 <a3a860bc0fd6c07332e4911cf9a238d20de90173; version=55a82ab3181be039c6440d3f2f69260ad6fe2988 <a676c0401de59548a5bc1b7aaf98f556ae8ea6db
Siemens · SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPversion=V3.1.5 <*
Siemens · SIMATIC S7-1500 TM MFP - BIOSversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1518-4 PN/DP MFPversion=V3.1.5 <*

Published CVSS scores

5.5Siemens ProductCERTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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

CWE-20Improper Input Validation
T1499Endpoint Denial of Service

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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