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CVE Record

CVE-2018-5831: In the KGSL driver in Android releases from CAF using the linux kernel (Android for MSM, Firefox OS for MSM...

In the KGSL 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 reference counting error can lead to a Use After Free condition.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2018-5831 is a memory-management flaw in Qualcomm’s KGSL graphics driver used by Android releases from CAF. Devices running affected CAF-based Qualcomm Android kernels before the 2018-06-05 security patch level may be exposed. The source bundle does not provide CVSS, impact details, or active exploitation evidence.

Executive priority

Prioritize as a mobile fleet hygiene and unsupported-device risk. Urgency is highest for business-critical Qualcomm Android devices stuck before the June 5, 2018 patch level, but the public evidence does not confirm active exploitation or business impact.

Technical view

The issue is described as a reference counting error in the KGSL driver that can lead to a use-after-free condition. Affected products are Android for MSM, Firefox OS for MSM, and QRD Android releases from CAF using the Linux kernel before Android security patch level 2018-06-05.

Likely exposure

Exposure is most likely in older Qualcomm/CAF-based Android device fleets, custom ROMs, embedded Android builds, or unsupported devices with security patch levels before 2018-06-05.

Exploitation context

The bundle does not cite KEV listing, public exploitation, exploit prerequisites, or attacker position. Treat exploitation status as unconfirmed. Kernel driver use-after-free flaws can be serious, but this record lacks enough impact detail to rate confidently.

Researcher notes

Evidence is limited to the CVE description, Android bulletin reference, Code Aurora bulletin reference, and a KGSL kernel commit. No CVSS, CWE, exploit status, prerequisites, or detailed impact are provided in the source bundle.

Mitigation direction

  • Apply OEM or vendor Android updates including the 2018-06-05 security patch level or later.
  • Check Qualcomm, Android, and CAF advisory guidance for device-specific fixes.
  • Prioritize replacement or isolation of unsupported pre-2018-06-05 Qualcomm Android devices.
  • Track custom CAF kernel builds against the referenced KGSL fix commit.

Validation and detection

  • Inventory Android devices and record security patch level, chipset, and kernel lineage.
  • Identify devices using Qualcomm CAF-based MSM, QRD, or Firefox OS for MSM kernels.
  • Confirm security patch level is 2018-06-05 or later where applicable.
  • Review kernel source or vendor release notes for the referenced KGSL fix.
  • Flag unsupported devices that cannot receive OEM security updates.
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

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-2018-5831 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.