CVE intelligence and bounded remediation

CVE-2019-5260 — Huawei smartphones HUAWEI Y9 2019 and Honor View 20 have a denial of service vulnerability

Medium CVSS 6.5

Huawei smartphones HUAWEI Y9 2019 and Honor View 20 have a denial of service vulnerability. Due to insufficient input validation of specific value when parsing the messages, an attacker may send specially crafted TD-SCDMA messages from a rogue base station to the affected devices to exploit this vulnerability. Successful exploit may cause an infinite loop and the device to reboot.

Severity
Medium
CVSS
6.5 (3.1)
Published
2019-12-13
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-20

Affected products

  • huawei / y9_2019_firmware / 8.2.0.160(c185r2p2)
  • huawei / y9_2019_firmware / 8.2.0.162(c605)
  • huawei / y9_2019_firmware / 8.2.0.163(c605)
  • huawei / view_20_firmware / 9.0.1.169(c636e1r4p1)
  • huawei / view_20_firmware / 9.0.1.170(c185e2r3p1)
  • huawei / view_20_firmware / 9.0.1.170(c432e1r3p1)

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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