# CVE-2021-22312: Denial of service in IPS Module;NGFW Module;Secospace USG6300;Secospace USG6500;Secospace USG6600;USG9500

> An authenticated remote attacker can cause service abnormalities in Huawei firewalls by triggering a memory leak through specific messages.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-5r7x-c359-rj25

## What is CVE-2021-22312?

CVE-2021-22312 is a medium-severity denial of service vulnerability in Huawei Ips Module Firmware, published on 8 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

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.

Weakness: CWE-401 (Missing Release of Memory after Effective Lifetime)

## Which versions are affected by CVE-2021-22312?

It affects 12 products.


Products: Huawei Ips6000e Firmware, Huawei Ips Module Firmware, Huawei Ngfw Module Firmware, Huawei Nip6000e Firmware, Huawei Nip6300 Firmware, Huawei Nip6600 Firmware, Huawei Nip6800 Firmware, Huawei Secospace Usg6300 Firmware, Huawei Secospace Usg6500 Firmware, Huawei Secospace Usg6600 Firmware, Huawei Usg6000e Firmware, Huawei Usg9500 Firmware.

## How do I fix CVE-2021-22312?

No fix has been published for CVE-2021-22312 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-22312 being exploited?

There is no known exploitation of CVE-2021-22312 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-22312 and fix it if it is affected.

What it is: CVE-2021-22312 is a medium-severity denial of service vulnerability in Huawei Ips Module Firmware, published on 8 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-22312 in the wild and no public exploit code.

Affected product: Huawei Ips Module Firmware. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-22312/ (Markdown: https://insights.sbomify.com/CVE-2021-22312/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-22312
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-22312
- OSV: https://osv.dev/vulnerability/CVE-2021-22312

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-22312/
Summaries are generated and may contain mistakes; the official description above is the record.