# CVE-2018-16764: Memory corruption in n/a

> A heap-based buffer over-read in WAVM allows attackers to cause a denial of service via a crafted file.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 10 Sep 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-8258-3qq7-qh2g

## What is CVE-2018-16764?

CVE-2018-16764 is a high-severity memory corruption vulnerability in n/a, published on 10 Sep 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

In WAVM through 2018-07-26, a crafted file sent to the WebAssembly Virtual Machine may cause a denial of service (application crash) or possibly have unspecified other impact because of an IR::FunctionValidationContext::catch_all heap-based buffer over-read.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2018-16764?

It affects 1 product.


Products: Webassembly Virtual Machine Project Webassembly Virtual Machine.

## How do I fix CVE-2018-16764?

No fix has been published for CVE-2018-16764 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-16764 being exploited?

There is no known exploitation of CVE-2018-16764 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-17293](https://insights.sbomify.com/CVE-2018-17293/): Null dereference in n/a (high 8.8)
- [CVE-2018-16765](https://insights.sbomify.com/CVE-2018-16765/): Memory corruption in n/a (high 8.8)
- [CVE-2018-16766](https://insights.sbomify.com/CVE-2018-16766/): Denial of service in n/a (high 8.8)
- [CVE-2018-16767](https://insights.sbomify.com/CVE-2018-16767/): Memory corruption in n/a (high 8.8)
- [CVE-2018-16768](https://insights.sbomify.com/CVE-2018-16768/): Memory corruption in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-16764 and fix it if it is affected.

What it is: CVE-2018-16764 is a high-severity memory corruption vulnerability in n/a, published on 10 Sep 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-16764 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-2018-16764/ (Markdown: https://insights.sbomify.com/CVE-2018-16764/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-16764
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-16764
- OSV: https://osv.dev/vulnerability/CVE-2018-16764

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-16764/
Summaries are generated and may contain mistakes; the official description above is the record.