CVE intelligence and bounded remediation

CVE-2019-15513 — Openwrt Libuci security vulnerability

High CVSS 7.8

An issue was discovered in OpenWrt libuci (aka Library for the Unified Configuration Interface) before 15.05.1 as used on Motorola CX2L MWR04L 1.01 and C1 MWR03 1.01 devices. /tmp/.uci/network locking is mishandled after reception of a long SetWanSettings command, leading to a device hang.

Severity
High
CVSS
7.8 (2.0)
Published
2019-08-23
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-667

Affected products

  • openwrt / libuci
  • motorola / cx2l_mwr04l_firmware / 1.01
  • motorola / c1_mwr03_firmware / 1.01

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

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.