CVE intelligence and bounded remediation

CVE-2020-11233 — Qualcomm Apq8009 Firmware security vulnerability

High CVSS 7

Time-of-check time-of-use race condition While processing partition entries due to newly created buffer was read again from mmc without validation in Snapdragon Auto, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

Severity
High
CVSS
7 (3.1)
Published
2021-06-09
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-367

Affected products

  • qualcomm / apq8009_firmware
  • qualcomm / apq8009w_firmware
  • qualcomm / apq8017_firmware
  • qualcomm / apq8053_firmware
  • qualcomm / apq8076_firmware
  • qualcomm / apq8096au_firmware

Showing 6 representative product identities from 112 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Race condition, TOCTOU, and lifecycle synchronization

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

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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