Security readout for executives and security teams
Plain-English summary
CVE-2018-9344 is a high-severity Android 8.1 local privilege escalation issue. A flaw in several DescramblerImpl.cpp functions could let a low-privileged local attacker gain higher privileges without user interaction.
Executive priority
Treat this as a high-priority legacy Android exposure issue. It is not remotely exploitable from the provided evidence, but successful local exploitation could compromise device confidentiality, integrity, and availability.
Technical view
The issue is a use-after-free condition caused by improper locking in DescramblerImpl.cpp. CVSS 3.1 is 7.8 with local attack vector, low complexity, low privileges required, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure appears limited to Android 8.1 as listed in the source bundle. Organizations should prioritize managed, kiosk, embedded, or long-lived Android devices that may remain on Android 8.1 builds.
Exploitation context
The source bundle does not cite active exploitation, and KEV status is false. Exploitation is described as local, requiring some local privileges, but no user interaction.
Researcher notes
The available evidence identifies CWE-416 use-after-free from improper locking in DescramblerImpl.cpp. The bundle does not provide patch diff details, exploit maturity, or affected device model scope beyond Android 8.1.
Mitigation direction
- Inventory devices running Android 8.1.
- Check OEM guidance for Android Security Bulletin 2018-06-01.
- Apply available Android or OEM security updates.
- Retire or isolate devices that cannot receive security updates.
Validation and detection
- Confirm Android version and security patch level on managed devices.
- Map Android 8.1 devices to business owners and use cases.
- Verify OEM update availability for each device model.
- Document exceptions for unsupported or unpatchable devices.
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.
CWE-416: Exact CWE lookup
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Open ATT&CK lookupCVE-2018-9344 mapping review
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Open ATT&CK lookup- 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
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 vector scores
1 official scoreWe 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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://source.android.com/security/bulletin/2018-06-01CVE reference
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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.