# CVE-2016-1383: Denial of service in n/a

> Remote attackers can cause a denial of service via memory consumption on Cisco Web Security Appliance devices by sending a specific HTTP status code.

- **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:** 25 May 2016
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-xqf6-m6vx-v7jx

## What is CVE-2016-1383?

CVE-2016-1383 is a high-severity denial of service vulnerability in n/a, published on 25 May 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Memory leak in Cisco AsyncOS through 8.8 on Web Security Appliance (WSA) devices allows remote attackers to cause a denial of service (memory consumption) via an unspecified HTTP status code, aka Bug ID CSCur28305.

Weakness: CWE-399

## Which versions are affected by CVE-2016-1383?

It affects 1 product.


Products: Cisco Web Security Appliance \(Wsa\).

## How do I fix CVE-2016-1383?

No fix has been published for CVE-2016-1383 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-1383 being exploited?

There is no known exploitation of CVE-2016-1383 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2016-1382](https://insights.sbomify.com/CVE-2016-1382/): Denial of service in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-1383 and fix it if it is affected.

What it is: CVE-2016-1383 is a high-severity denial of service vulnerability in n/a, published on 25 May 2016. 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-2016-1383 in the wild and no public exploit code.

Affected product: n/a. 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-2016-1383/ (Markdown: https://insights.sbomify.com/CVE-2016-1383/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-1383
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-1383
- OSV: https://osv.dev/vulnerability/CVE-2016-1383

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-1383/
Summaries are generated and may contain mistakes; the official description above is the record.