# CVE-2009-0165: Integer overflow in n/a

> An integer overflow in the JBIG2 decoder allows attackers to execute arbitrary code or cause denial of service via malicious PDFs.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **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:** Yes
- **Published:** 23 Apr 2009
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2009-0165, GHSA-qx4p-wc3g-wr66

## What is CVE-2009-0165?

CVE-2009-0165 is a critical vulnerability in Glyphandcog Xpdfreader, published on 23 Apr 2009. 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

Integer overflow in the JBIG2 decoder in Xpdf 3.02pl2 and earlier, as used in Poppler and other products, when running on Mac OS X, has unspecified impact, related to "g*allocn."

Weakness: CWE-189

## Which versions are affected by CVE-2009-0165?

It affects 2 products.


Products: Foolabs Xpdf, Glyphandcog Xpdfreader.

## How do I fix CVE-2009-0165?

Upgrade to a fixed version.

## Is CVE-2009-0165 being exploited?

There is no known exploitation of CVE-2009-0165 in the wild and no public exploit code.

## Other vulnerabilities in Glyphandcog Xpdfreader

- [CVE-2009-3603](https://insights.sbomify.com/CVE-2009-3603/): Integer overflow in n/a (critical 9.3)
- [CVE-2009-3604](https://insights.sbomify.com/CVE-2009-3604/): Memory corruption in n/a (critical 9.3)
- [CVE-2009-3606](https://insights.sbomify.com/CVE-2009-3606/): Integer overflow in n/a (critical 9.3)
- [CVE-2009-3608](https://insights.sbomify.com/CVE-2009-3608/): Integer overflow in n/a (critical 9.3)
- [CVE-2009-1144](https://insights.sbomify.com/CVE-2009-1144/): Path traversal in n/a (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-0165 and fix it if it is affected.

What it is: CVE-2009-0165 is a critical vulnerability in Glyphandcog Xpdfreader, published on 23 Apr 2009. 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-2009-0165 in the wild and no public exploit code.

Affected product: Glyphandcog Xpdfreader. 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-2009-0165/ (Markdown: https://insights.sbomify.com/CVE-2009-0165/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-0165
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-0165
- OSV: https://osv.dev/vulnerability/CVE-2009-0165

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-0165/
Summaries are generated and may contain mistakes; the official description above is the record.