# CVE-2018-8839: Memory corruption in PMSoft

> A stack-based buffer overflow in Delta PMSoft allows arbitrary code execution or application crashes when processing malicious .ppm files.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Apr 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-3p59-pfvq-j3p8

## What is CVE-2018-8839?

CVE-2018-8839 is a high-severity memory corruption vulnerability in Delta Electronics PMSoft, published on 30 Apr 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Delta PMSoft versions 2.10 and prior have multiple stack-based buffer overflow vulnerabilities where a .ppm file can introduce a value larger than is readable by PMSoft's fixed-length stack buffer. This can cause the buffer to be overwritten, which may allow arbitrary code execution or cause the application to crash. CVSS v3 base score: 7.1; CVSS vector string: AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H. Delta Electronics recommends affected users update to at least PMSoft v2.11, which was made available as of March 22, 2018, or the latest available version.

Weakness: CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2018-8839?

It affects 1 product.


Products: Deltaww Pmsoft.

## How do I fix CVE-2018-8839?

No fix has been published for CVE-2018-8839 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-8839 being exploited?

There is no known exploitation of CVE-2018-8839 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-8839 and fix it if it is affected.

What it is: CVE-2018-8839 is a high-severity memory corruption vulnerability in Delta Electronics PMSoft, published on 30 Apr 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-8839 in the wild and no public exploit code.

Affected product: Delta Electronics PMSoft. 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-2018-8839/ (Markdown: https://insights.sbomify.com/CVE-2018-8839/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-8839
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-8839
- OSV: https://osv.dev/vulnerability/CVE-2018-8839

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-8839/
Summaries are generated and may contain mistakes; the official description above is the record.