# CVE-2018-8000: Memory corruption in n/a

> Remote attackers can execute arbitrary code or cause denial of service via a crafted PDF file exploiting a heap-based buffer overflow in the PoDoFo library.

- **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:** 9 Mar 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-68hv-95wx-r3jh

## What is CVE-2018-8000?

CVE-2018-8000 is a high-severity memory corruption vulnerability in Podofo Project Podofo, published on 9 Mar 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 PoDoFo 0.9.5, there exists a heap-based buffer overflow vulnerability in PoDoFo::PdfTokenizer::GetNextToken() in PdfTokenizer.cpp, a related issue to CVE-2017-5886. Remote attackers could leverage this vulnerability to cause a denial-of-service or potentially execute arbitrary code via a crafted pdf file.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2018-8000?

It affects 1 product.


Products: Podofo Project Podofo.

## How do I fix CVE-2018-8000?

No fix has been published for CVE-2018-8000 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-8000 being exploited?

There is no known exploitation of CVE-2018-8000 in the wild and no public exploit code.

## Other vulnerabilities in Podofo Project Podofo

- [CVE-2017-8378](https://insights.sbomify.com/CVE-2017-8378/): Memory corruption in n/a (critical 9.8)
- [CVE-2015-8981](https://insights.sbomify.com/CVE-2015-8981/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-31556](https://insights.sbomify.com/CVE-2023-31556/): Memory corruption in n/a (high 8.8)
- [CVE-2023-31566](https://insights.sbomify.com/CVE-2023-31566/): Use after free in n/a (high 8.8)
- [CVE-2023-31567](https://insights.sbomify.com/CVE-2023-31567/): Memory corruption in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-8000 and fix it if it is affected.

What it is: CVE-2018-8000 is a high-severity memory corruption vulnerability in Podofo Project Podofo, published on 9 Mar 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-2018-8000 in the wild and no public exploit code.

Affected product: Podofo Project Podofo. 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-2018-8000/ (Markdown: https://insights.sbomify.com/CVE-2018-8000/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-8000
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-8000
- OSV: https://osv.dev/vulnerability/CVE-2018-8000

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-8000/
Summaries are generated and may contain mistakes; the official description above is the record.