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CVE Record

CVE-2018-3564: In the FastRPC driver in Android releases from CAF using the linux kernel (Android for MSM, Firefox OS for...

In the FastRPC driver in Android releases from CAF using the linux kernel (Android for MSM, Firefox OS for MSM, QRD Android) before security patch level 2018-06-05, a Use After Free condition can occur when mapping on the remote processor fails.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2018-3564 is a Qualcomm CAF Android kernel issue in the FastRPC driver. A failed remote-processor mapping can leave freed memory in use. The sources identify affected CAF-based Android releases before the 2018-06-05 security patch level, but do not provide CVSS, impact details, or active exploitation evidence.

Executive priority

Treat this as a legacy mobile-platform hygiene item unless affected devices remain in production. The priority is confirming whether Qualcomm CAF-based Android devices are still deployed and whether their OEM firmware includes the 2018-06-05 patch or an equivalent backport.

Technical view

The CVE describes a use-after-free condition in the FastRPC driver in Android releases from CAF using the Linux kernel. The trigger condition is a mapping failure on the remote processor. A CAF kernel commit and Android/CAF bulletins are cited as remediation references, but the provided bundle lacks severity scoring and exploitability detail.

Likely exposure

Exposure is most likely in legacy Qualcomm MSM Android builds based on CAF Linux kernels, including Android for MSM, Firefox OS for MSM, and QRD Android, that lack the 2018-06-05 security patch level or equivalent vendor backport.

Exploitation context

The provided sources do not show known active exploitation, and KEV is false. The issue is kernel-driver memory safety, so impact could be serious if reachable, but the bundle does not establish attack prerequisites, privileges, or practical exploit status.

Researcher notes

The public bundle is thin: no CVSS, CWE, privilege requirements, or exploit narrative are supplied. Focus validation on code lineage, BSP backports, and OEM patch provenance rather than assuming all Android devices are affected.

Mitigation direction

  • Apply OEM or vendor firmware updates including the 2018-06-05 Android security patch level or equivalent backport.
  • Confirm Qualcomm CAF FastRPC fixes are present in device BSPs and downstream kernels.
  • Prioritize unsupported Qualcomm MSM devices for replacement, isolation, or compensating controls.
  • Check current vendor advisories before assuming a generic Android update fully covers customized builds.

Validation and detection

  • Inventory Android devices and builds using Qualcomm CAF or MSM kernels.
  • Verify reported Android security patch level is 2018-06-05 or later.
  • Compare downstream kernel history against the cited CAF commit or vendor backport notes.
  • Review OEM bulletins for CVE-2018-3564 coverage on each device model.
Prepared
Confidence
medium
Sources
5

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

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CVE-2018-3564 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
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Qualcomm, Inc.Android for MSM, Firefox OS for MSM, QRD AndroidAll Android releases from CAF using the Linux kernelListed
Weakness

CWE details

No CWE listed

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