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CVE-2024-41016 Linux CVE debrief

CVE-2024-41016 is a medium-severity vulnerability (CVSS 5.5) in the OCFS2 filesystem affecting Siemens SIMATIC S7-1500 TM MFP industrial control systems with GNU/Linux subsystems. The flaw exists in the ocfs2_xattr_find_entry() function where extended attributes (xattr) may be stored as 'non-indexed' with additional requested space, creating a potential out-of-bounds memory read condition during memcmp operations. While exploitation requires local access and crafted malicious filesystem images, the vulnerability could lead to integrity impacts. The issue was published on April 9, 2024, and remains unpatched as of the source's last modification on May 14, 2026. Siemens and CISA recommend defensive mitigations including restricting interactive shell access to trusted personnel only and ensuring applications are built and run exclusively from trusted sources.

Vendor
Linux
Product
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2024-07-29
Original CVE updated
2026-08-04
Advisory published
2024-07-29
Advisory updated
2026-08-04

Who should care

Industrial control system operators, OT security teams, and Siemens SIMATIC S7-1500 TM MFP administrators responsible for securing embedded GNU/Linux subsystems in manufacturing and critical infrastructure environments.

Technical summary

The vulnerability resides in ocfs2_xattr_find_entry() where non-indexed extended attributes with additional allocated space may not have proper bounds checking before memcmp operations. This creates a potential out-of-bounds memory read when processing crafted filesystem images. The attack surface is limited by the requirement for local access and malicious image mounting, but integrity impact is rated high in CVSS scoring.

Defensive priority

medium

Recommended defensive actions

  • Restrict interactive shell access to the GNU/Linux subsystem to trusted personnel only
  • Build and run applications exclusively from trusted sources
  • Monitor for anomalous filesystem image mounting attempts
  • Apply vendor patches when released by Siemens

Evidence notes

Vulnerability description and affected product confirmed through CISA CSAF advisory ICSA-24-102-01. CVSS vector AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N indicates local attack vector with low attack complexity and low privileges required, no user interaction needed, with integrity impact as primary concern. No availability or confidentiality impact per scoring.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-41016 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-41016

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

  • CVE-2024-41016 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-41016

    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.