# CVE-2017-16797: Integer overflow in n/a

> Remote attackers can cause denial of service or potential code execution via crafted PNG files due to integer overflow in SWFTools.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/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:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 12 Nov 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-h43q-c49w-j2jr, UBUNTU-CVE-2017-16797

## What is CVE-2017-16797?

CVE-2017-16797 is a high-severity vulnerability in Swftools Swftools, published on 12 Nov 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

In SWFTools 0.9.2, the png_load function in lib/png.c does not properly validate an alloclen_64 multiplication of width and height values, which allows remote attackers to cause a denial of service (integer overflow, heap-based buffer overflow, and application crash) or possibly have unspecified other impact via a crafted PNG file.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2017-16797?

It affects 1 product.


Products: Swftools Swftools.

## How do I fix CVE-2017-16797?

No fix has been published for CVE-2017-16797 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-16797 being exploited?

There is no known exploitation of CVE-2017-16797 in the wild and no public exploit code.

## Other vulnerabilities in Swftools Swftools

- [CVE-2022-40008](https://insights.sbomify.com/CVE-2022-40008/): Memory corruption in n/a (critical 9.8)
- [CVE-2022-40009](https://insights.sbomify.com/CVE-2022-40009/): Use after free in n/a (critical 9.8)
- [CVE-2010-1516](https://insights.sbomify.com/CVE-2010-1516/): Integer overflow in n/a (critical 9.3)
- [CVE-2024-26339](https://insights.sbomify.com/CVE-2024-26339/): Memory corruption in n/a (critical 9.1)
- [CVE-2024-25165](https://insights.sbomify.com/CVE-2024-25165/): Memory corruption in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-16797 and fix it if it is affected.

What it is: CVE-2017-16797 is a high-severity vulnerability in Swftools Swftools, published on 12 Nov 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2017-16797 in the wild and no public exploit code.

Affected product: Swftools Swftools. 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-2017-16797/ (Markdown: https://insights.sbomify.com/CVE-2017-16797/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-16797
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-16797
- OSV: https://osv.dev/vulnerability/CVE-2017-16797

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-16797/
Summaries are generated and may contain mistakes; the official description above is the record.