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CVE Record

CVE-2024-35933: Bluetooth: btintel: Fix null ptr deref in btintel_read_version

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: Fix null ptr deref in btintel_read_version If hci_cmd_sync_complete() is triggered and skb is NULL, then hdev->req_skb is NULL, which will cause this issue.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel Bluetooth bug in Intel Bluetooth handling that can dereference a null pointer. In business terms, the main concern is availability on systems using affected kernels and Bluetooth support. The source bundle does not provide CVSS, confirmed exploitation, or detailed attacker requirements.

Executive priority

Treat this as a targeted kernel maintenance item, not an emergency based on current evidence. Prioritize laptops, workstations, embedded devices, and appliances using Linux Bluetooth support, especially where downtime would affect operations.

Technical view

CVE-2024-35933 affects the Linux kernel btintel Bluetooth path. The fix addresses a null pointer dereference in btintel_read_version when hci_cmd_sync_complete() is triggered with skb as NULL, leaving hdev->req_skb NULL. Stable kernel commits and Debian LTS advisories are cited as remediation sources.

Likely exposure

Likely exposure is Linux systems running affected kernel versions with Intel Bluetooth support enabled or present. Systems without Bluetooth hardware/modules, or kernels containing the referenced stable fixes, are less likely exposed. The bundle does not provide a complete distribution package matrix.

Exploitation context

No provided source states active exploitation, and KEV is false. The available evidence describes a kernel null pointer dereference, suggesting possible denial-of-service impact, but attacker position, trigger reliability, and real-world exploitation are not established in the bundle.

Researcher notes

The record lacks CVSS, CWE, and detailed exploitability data. Analysis should focus on affected kernel lineage, btintel exposure, distribution backports, and whether the vulnerable path is reachable in local hardware configurations.

Mitigation direction

  • Apply vendor kernel updates that include the referenced stable commits.
  • Review Debian LTS advisories if running affected Debian releases.
  • Check Linux distribution security guidance for exact fixed package versions.
  • Disable or remove unnecessary Bluetooth support where operationally feasible.

Validation and detection

  • Inventory Linux hosts with Bluetooth hardware or btintel module usage.
  • Compare running kernel versions against vendor fixed releases.
  • Confirm patched kernels include the referenced upstream stable commits.
  • Monitor vendor advisories for updated severity or exploit information.
Prepared
Confidence
medium
Sources
8

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-2024-35933 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
3ADP providers
12Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

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.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container
siemens-SADPADP container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxabfeea476c68afea54c9c050a2d3b19d5d2ee873, abfeea476c68afea54c9c050a2d3b19d5d2ee873, abfeea476c68afea54c9c050a2d3b19d5d2ee873, abfeea476c68afea54c9c050a2d3b19d5d2ee873unaffected
LinuxLinux5.17, 0, 6.1.86, 6.6.27, 6.8.6, 6.9affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.