Analyst readout for executives and security teams
Plain-English summary
This is a Qualcomm Android kernel resource-lifecycle defect. A file descriptor allocated during get_metadata was not closed after its buffer was freed, causing a failure during an exit sequence. The public record does not provide CVSS, exploitation evidence, or a detailed business impact.
Executive priority
Handle this as a legacy mobile-platform hygiene issue unless affected devices remain operational. Priority rises for unsupported Qualcomm Android devices with access to sensitive data, enterprise networks, or regulated workflows.
Technical view
Affected Qualcomm Android for MSM, Firefox OS for MSM, and QRD Android releases from CAF using the Linux kernel mishandle cleanup in get_metadata: the buffer is freed but its file descriptor remains open. The described result is exit-sequence failure; broader security consequences are not stated in the sources.
Likely exposure
Exposure is most plausible on older Qualcomm-based Android or CAF-derived builds using affected Linux kernel releases. Current exposure depends on device firmware lineage, vendor patch level, and whether unsupported devices remain in service.
Exploitation context
The provided sources do not show active exploitation, public exploit status, KEV listing, CVSS, or prerequisites. Treat exploitation context as unproven from available evidence.
Researcher notes
The record is sparse: no CVSS, CWE, exploitability, privilege boundary, or exact patched component is provided. Research should stay focused on descriptor cleanup around get_metadata in affected CAF-derived kernels and avoid assuming impact beyond the stated exit-sequence failure.
Mitigation direction
- Check OEM, Qualcomm, CAF, and Android bulletin guidance for the specific device build.
- Apply vendor firmware or Android security updates that address the December 2017 bulletin where available.
- Prioritize replacement or isolation for unsupported Qualcomm Android devices without security updates.
- Track affected devices by chipset, Android build, kernel lineage, and patch level.
Validation and detection
- Inventory Qualcomm-based Android devices and record Android security patch level.
- Confirm whether builds derive from CAF Linux kernel releases named by the CVE.
- Review vendor advisories or release notes for CVE-2017-11019 coverage.
- Verify unsupported devices are not used for sensitive workloads or trusted access paths.
Public sources used
Based on public source material and reviewed before publication.
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-2017-11019 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://source.android.com/security/bulletin/pixel/2017-12-01CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.