CVE intelligence and bounded remediation

CVE-2021-22312 — There is a memory leak vulnerability in some Huawei products

Medium CVSS 6.5

There is a memory leak vulnerability in some Huawei products. An authenticated remote attacker may exploit this vulnerability by sending specific message to the affected product. Due to not release the allocated memory properly, successful exploit may cause some service abnormal. Affected product include some versions of IPS Module, NGFW Module, Secospace USG6300, Secospace USG6500, Secospace USG6600 and USG9500.

Severity
Medium
CVSS
6.5 (3.1)
Published
2021-04-08
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-401

Affected products

  • huawei / ips_module_firmware / v500r005c00spc100
  • huawei / ips_module_firmware / v500r005c00spc200
  • huawei / ngfw_module_firmware / v500r005c00spc100
  • huawei / ngfw_module_firmware / v500r005c00spc200
  • huawei / secospace_usg6300_firmware / v500r001c30spc200
  • huawei / secospace_usg6300_firmware / v500r001c30spc600

Showing 6 representative product identities from 42 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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