# CVE-2017-8167: Denial of service in USG9500

> Remote attackers can cause Huawei USG9500 firewalls to restart by sending malformed IKE packets, resulting in a denial of service.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Nov 2017
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-m4m3-4cv6-v52c

## What is CVE-2017-8167?

CVE-2017-8167 is a high-severity denial of service vulnerability in Huawei Usg9500 Firmware, published on 22 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Huawei firewall products USG9500 V500R001C50 has a DoS vulnerability.A remote attacker who controls the peer device could exploit the vulnerability by sending malformed IKE packets to the target device. Successful exploit of the vulnerability could cause the device to restart.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2017-8167?

It affects 1 product.


Products: Huawei Usg9500 Firmware.

## How do I fix CVE-2017-8167?

No fix has been published for CVE-2017-8167 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-8167 being exploited?

There is no known exploitation of CVE-2017-8167 in the wild and no public exploit code.

## Other vulnerabilities in Huawei Usg9500 Firmware

- [CVE-2020-1871](https://insights.sbomify.com/CVE-2020-1871/): Information disclosure in USG9500 (high 8.2)
- [CVE-2021-22309](https://insights.sbomify.com/CVE-2021-22309/): Weak cryptography in USG9500,USG9520,USG9560,USG9580 (high 7.5)
- [CVE-2019-5273](https://insights.sbomify.com/CVE-2019-5273/): Memory corruption in USG9500 (high 7.5)
- [CVE-2019-5274](https://insights.sbomify.com/CVE-2019-5274/): Denial of service in USG9500 (high 7.5)
- [CVE-2019-5275](https://insights.sbomify.com/CVE-2019-5275/): Memory corruption in USG9500 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-8167 and fix it if it is affected.

What it is: CVE-2017-8167 is a high-severity denial of service vulnerability in Huawei Usg9500 Firmware, published on 22 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-8167 in the wild and no public exploit code.

Affected product: Huawei Usg9500 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-2017-8167/ (Markdown: https://insights.sbomify.com/CVE-2017-8167/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-8167
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-8167
- OSV: https://osv.dev/vulnerability/CVE-2017-8167

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-8167/
Summaries are generated and may contain mistakes; the official description above is the record.