Security readout for executives and security teams
Plain-English summary
This CVE describes a race condition in a Qualcomm CAF Android bus driver that can cause a double free. Affected software includes CAF Android releases using the Linux kernel for Android for MSM, Firefox OS for MSM, and QRD Android. The provided sources do not state impact, CVSS, exploitability, or a specific fix.
Executive priority
Treat this as a legacy mobile-platform exposure requiring inventory and vendor confirmation, not an emergency active-exploitation event based on current sources. Priority should rise for internet-managed, high-value, or unsupported Qualcomm Android fleets.
Technical view
The issue is a potential double free in msm_bus_floor_vote_context() caused by a race condition in a bus driver. The affected scope is listed as all Android releases from CAF using the Linux kernel for Qualcomm MSM-related Android distributions. No CWE, CVSS vector, attacker prerequisites, or patch details are provided in the bundle.
Likely exposure
Exposure is most likely in legacy Qualcomm-based Android firmware, BSPs, or downstream products derived from CAF Linux kernel releases before vendor remediation. The bundle does not identify specific device models, kernel branches, or Android patch levels.
Exploitation context
The sources do not report active exploitation, and CISA KEV status is false in the bundle. Double free flaws can imply memory corruption risk, but the available evidence does not establish attack vector, required privileges, reliability, or real-world exploitation.
Researcher notes
The public record is sparse: it names the vulnerable function, root condition, affected CAF release family, and bulletin reference, but omits exploitability details and fix identifiers. Avoid assuming device-level impact without matching downstream kernel code or vendor patch notes.
Mitigation direction
- Check Qualcomm, CAF, and OEM advisories for CVE-2017-15843 remediation guidance.
- Update affected Android firmware or BSPs through supported vendor release channels.
- Prioritize legacy Qualcomm Android devices that no longer receive security updates.
- Retire or isolate unsupported devices when vendor patches are unavailable.
Validation and detection
- Inventory Qualcomm-based Android products and CAF-derived kernel sources.
- Search vendor firmware notes for CVE-2017-15843 or msm_bus_floor_vote_context references.
- Confirm whether the May 2018 Code Aurora bulletin is reflected in deployed builds.
- Record unsupported devices separately for replacement or compensating controls.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2017-15843 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://www.codeaurora.org/security-bulletin/2018/05/11/may-2018-code-aurora-security-bulletin-2CVE reference · x_refsource_MISC
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.