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CVE Record

CVE-2024-38562: wifi: nl80211: Avoid address calculations via out of bounds array indexing

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: Avoid address calculations via out of bounds array indexing Before request->channels[] can be used, request->n_channels must be set. Additionally, address calculations for memory after the "channels" array need to be calculated from the allocation base ("request") rather than via the first "out of bounds" index of "channels", otherwise run-time bounds checking will throw a warning.

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel Wi-Fi subsystem flaw that can let a local low-privileged user trigger unsafe memory handling. The CVSS impact is high because successful exploitation could affect confidentiality, integrity, and availability, but the provided sources do not show remote exploitation or active exploitation.

Executive priority

Treat as a high-priority kernel maintenance item, especially for shared Linux systems and endpoints. It is not described as internet-remotely exploitable in the provided sources, but kernel memory issues can have serious business impact if local access is available.

Technical view

CVE-2024-38562 is a CWE-129 out-of-bounds array indexing issue in nl80211. The fix ensures request->n_channels is set before request->channels[] use and avoids deriving post-array addresses from an out-of-bounds index. The vector is local, low complexity, low privilege, no user interaction.

Likely exposure

Systems running affected Linux kernel builds with nl80211 Wi-Fi functionality are the likely exposure. The provided data names Linux kernel versions around 6.6, 6.6.33, 6.8.12, 6.9.3, and 6.10, but distro backports must be checked.

Exploitation context

The source bundle marks KEV as false and provides no cited evidence of active exploitation. The CVSS vector indicates local access with low privileges is required, so this is more urgent on shared systems, endpoints, and devices where untrusted local users can run code.

Researcher notes

Focus validation on nl80211 kernel code provenance and stable commit inclusion, not just upstream version strings. The public description is concise and does not provide exploitability details beyond CVSS, CWE-129, and the memory bounds correction.

Mitigation direction

  • Apply vendor or distribution kernel updates containing the referenced stable fixes.
  • Check Linux kernel and distro advisories for exact fixed package versions.
  • Prioritize shared hosts, laptops, and wireless-capable Linux devices.
  • Restrict untrusted local shell access where patching is delayed.
  • Track exceptions for unsupported kernels until upgraded or replaced.

Validation and detection

  • Inventory Linux kernel versions across managed systems.
  • Confirm whether distro packages include the referenced stable commits.
  • Flag affected or uncertain systems for patching review.
  • Verify patched hosts are running the updated kernel after reboot.
  • Document distro backport evidence for accepted residual risk.
Prepared
Confidence
medium
Sources
6

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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cwe · low confidence lookup

CWE-129: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2024-38562 mapping review

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Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

1CVSS vectors
3Timeline events
2ADP providers
5Source links

SSVC decision data

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

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2024-38562Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

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
cvssV3_1other:ssvc
CVECVE Program Container
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxe3eac9f32ec04112b39e01b574ac739382469bf9, e3eac9f32ec04112b39e01b574ac739382469bf9, e3eac9f32ec04112b39e01b574ac739382469bf9, e3eac9f32ec04112b39e01b574ac739382469bf9unaffected
LinuxLinux6.6, 0, 6.6.33, 6.8.12, 6.9.3, 6.10affected
Weakness

CWE details

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

CWE-129 · source CWE mapping

Improper Validation of Array Index

Improper Validation of Array Index represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.