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PatchSiren cyber security CVE debrief

CVE-2024-58009 Siemens CVE debrief

A NULL pointer dereference vulnerability in the Linux kernel's Bluetooth L2CAP subsystem affects Siemens SIMATIC S7-1500 TM MFP industrial controllers. The flaw occurs in l2cap_sock_alloc() when handling socket allocation failures, potentially causing denial of service through local system crashes. This vulnerability resides in the GNU/Linux subsystem of affected industrial control devices.

Vendor
Siemens
Product
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2024-04-09
Original CVE updated
2026-05-14
Advisory published
2024-04-09
Advisory updated
2026-05-14

Who should care

Industrial control system operators, OT security teams, and organizations deploying Siemens SIMATIC S7-1500 TM MFP controllers in manufacturing, process control, or critical infrastructure environments should prioritize assessment. System integrators and maintenance personnel with interactive shell access to affected devices face elevated risk exposure.

Technical summary

The vulnerability exists in the Linux kernel's Bluetooth L2CAP (Logical Link Control and Adaptation Protocol) implementation. Specifically, l2cap_sock_alloc() fails to properly handle cases where socket allocation returns NULL, leading to a NULL pointer dereference. This can trigger a kernel panic or system crash when exploited locally. The affected component is the GNU/Linux subsystem within Siemens SIMATIC S7-1500 TM MFP programmable logic controllers, which incorporate embedded Linux environments for extended functionality. The vulnerability requires local access with low privileges but no user interaction, making it exploitable by authenticated users with shell access to the device's Linux subsystem.

Defensive priority

medium

Recommended defensive actions

  • Restrict interactive shell access to the GNU/Linux subsystem to trusted personnel only
  • Build and run only applications from trusted sources
  • Monitor for anomalous Bluetooth subsystem activity on affected devices
  • Apply vendor patches when Siemens releases a fix
  • Segment affected industrial control systems from untrusted networks

Evidence notes

The vulnerability description indicates a NULL pointer handling issue in the Bluetooth L2CAP socket allocation function. Siemens has confirmed this affects the GNU/Linux subsystem of SIMATIC S7-1500 TM MFP devices. The CVSS vector (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) confirms local attack vector with low complexity, requiring low privileges but no user interaction, resulting in high availability impact only.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-58009 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-58009

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2024-58009 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-58009

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-102-01.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/csaf/ssa-265688.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/html/ssa-265688.html

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-24-102-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.