CVE intelligence and bounded remediation

CVE-2017-18647 — An issue was discovered on Samsung mobile devices with M(6,x) and N(7.0) software

High CVSS 8.1

An issue was discovered on Samsung mobile devices with M(6,x) and N(7.0) software. The TA Scrypto v1.0 implementation in Secure Driver has a race condition with a resultant buffer overflow. The Samsung IDs are SVE-2017-8973, SVE-2017-8974, and SVE-2017-8975 (November 2017).

Severity
High
CVSS
8.1 (3.1)
Published
2020-04-07
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-362

Affected products

  • google / android / 6.0
  • google / android / 6.0.1
  • google / android / 7.0

Matched remediation archetype

Race condition, TOCTOU, and lifecycle synchronization

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Check exposure

  • Map concurrent actors, shared state, lock boundaries, signals, callbacks, retries, and check-then-use sequences in the affected path.
  • Determine whether untrusted users can influence timing, object names, filesystem state, or repeated state transitions.
  • Identify clustered and multi-process behavior that repository-local tests may not represent.

Remediate safely

  • Make the sensitive state transition atomic or protect it with a consistently ordered synchronization primitive.
  • Perform authorization and invariant checks on the same authoritative object and transaction used for the operation.
  • Use unique private resources, safe ownership transfer, and idempotent operations; add deterministic concurrency regression tests.

Authoritative sources

Complete CVE record and remediation plan

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