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CVE Record

CVE-2023-54110: usb: rndis_host: Secure rndis_query check against int overflow

In the Linux kernel, the following vulnerability has been resolved: usb: rndis_host: Secure rndis_query check against int overflow Variables off and len typed as uint32 in rndis_query function are controlled by incoming RNDIS response message thus their value may be manipulated. Setting off to a unexpectetly large value will cause the sum with len and 8 to overflow and pass the implemented validation step. Consequently the response pointer will be referring to a location past the expected buffer boundaries allowing information leakage e.g. via RNDIS_OID_802_3_PERMANENT_ADDRESS OID.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This Linux kernel flaw affects the USB RNDIS host driver. A malicious or malformed RNDIS response can trick a bounds check through integer overflow, potentially causing the kernel to read beyond the expected buffer and leak information. The source does not provide a CVSS score or confirmed real-world exploitation.

Executive priority

Treat as a focused kernel information-leak issue. Prioritize systems that connect to untrusted USB or RNDIS networking devices. Because exploitation and severity data are incomplete, handle through normal kernel patch cycles unless local exposure is high.

Technical view

In rndis_query, attacker-controlled uint32 off and len fields from an RNDIS response can overflow when combined with 8. That overflow can bypass validation, making the response pointer reference data past expected buffer boundaries and enabling information leakage, including through RNDIS_OID_802_3_PERMANENT_ADDRESS.

Likely exposure

Exposure is most likely on Linux systems using the rndis_host USB networking path, especially where untrusted or externally controlled RNDIS devices can be connected. The source lists multiple affected Linux kernel version ranges but does not identify specific distributions or products.

Exploitation context

The CVE record describes manipulation through incoming RNDIS response messages. CISA KEV status is false in the provided bundle, and no cited source confirms active exploitation, public exploit availability, or remote network exploitability.

Researcher notes

Key risk is arithmetic overflow in validation of response offsets and lengths. The bundle cites stable kernel commits as fixes, but provides no CVSS, CWE, exploit confirmation, or distro-specific package mapping. Avoid assuming broader impact beyond Linux rndis_host handling.

Mitigation direction

  • Update to a vendor-supported kernel containing the referenced stable fixes.
  • Check Linux distribution advisories for exact fixed package versions.
  • Limit use of untrusted RNDIS USB networking devices until patched.
  • Disable or restrict rndis_host where vendor guidance supports doing so.

Validation and detection

  • Inventory Linux kernels and identify systems using rndis_host.
  • Compare deployed kernel versions against vendor fixed versions or referenced commits.
  • Review USB networking exposure for untrusted RNDIS-capable devices.
  • Confirm patch deployment through package metadata or kernel build provenance.
Prepared
Confidence
medium
Sources
10

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2023-54110 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
0ADP providers
9Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxddda08624013e8435e9f7cfc34a35bd7b3520b6d, ddda08624013e8435e9f7cfc34a35bd7b3520b6d, ddda08624013e8435e9f7cfc34a35bd7b3520b6d, ddda08624013e8435e9f7cfc34a35bd7b3520b6d, ddda08624013e8435e9f7cfc34a35bd7b3520b6d, ddda08624013e8435e9f7cfc34a35bd7b3520b6d, ddda08624013e8435e9f7cfc34a35bd7b3520b6d, ddda08624013e8435e9f7cfc34a35bd7b3520b6dunaffected
LinuxLinux2.6.22, 0, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.87, 6.0.19, 6.1.5, 6.2affected
Weakness

CWE details

No CWE listed

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