CVE intelligence and bounded remediation

CVE-2019-16400 — Samsung Galaxy S8 Plus Firmware security vulnerability

Medium CVSS 6.5

Samsung Galaxy S8 plus (Android version: 8.0.0, Build Number: R16NW.G955USQU5CRG3, Baseband Vendor: Qualcomm Snapdragon 835, Baseband: G955USQU5CRG3), Samsung Galaxy S3 (Android version: 4.3, Build Number: JSS15J.I9300XXUGND5, Baseband Vendor: Samsung Exynos 4412, Baseband: I9300XXUGNA8), and Samsung Galaxy Note 2 (Android version: 4.3, Build Number: JSS15J.I9300XUGND5, Baseband Vendor: Samsung Exynos 4412, Baseband: N7100DDUFND1) devices allow attackers to send AT commands over Bluetooth, resulting in several Denial of Service (DoS) attacks.

Severity
Medium
CVSS
6.5 (3.1)
Published
2019-11-06
CISA KEV
Not currently listed
Ecosystem
operating-system

Affected products

  • samsung / galaxy_s8_plus_firmware
  • samsung / galaxy_s3_firmware
  • samsung / galaxy_note_2_firmware

Matched remediation archetype

Resource exhaustion and denial of service

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify attacker-influenced work factors including input size, nesting, compression, fan-out, regex cost, allocation, recursion, retries, and connection lifetime.
  • Map per-request and shared CPU, memory, disk, descriptor, thread, queue, and downstream-service limits.
  • Determine whether authentication, tenancy, quotas, and rate controls apply before expensive processing begins.

Remediate safely

  • Bound input size, nesting, expansion, work, concurrency, queue depth, retries, and execution time before resource-intensive processing.
  • Release resources on every success, error, cancellation, and timeout path and use backpressure instead of unbounded buffering.
  • Update affected components and add small deterministic tests that assert resource ceilings rather than exhausting a host.

Authoritative sources

Complete CVE record and remediation plan

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