# CVE-2022-45587: Memory corruption in n/a

> A stack overflow in the gmalloc function allows local attackers to cause a denial of service in the xpdf library.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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:** Yes
- **Published:** 15 Feb 2023
- **Updated:** 19 Mar 2025
- **Also known as:** GHSA-xg6w-qq7g-f5fh, UBUNTU-CVE-2022-45587

## What is CVE-2022-45587?

CVE-2022-45587 is a medium-severity memory corruption vulnerability in Xpdfreader Xpdf, published on 15 Feb 2023. 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

Stack overflow vulnerability in function gmalloc in goo/gmem.cc in xpdf 4.04, allows local attackers to cause a denial of service.

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

## Which versions are affected by CVE-2022-45587?

It affects 1 product.


Products: Xpdfreader Xpdf.

## How do I fix CVE-2022-45587?

Upgrade to a fixed version.

## Is CVE-2022-45587 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-45587 exists.

## Other vulnerabilities in Xpdfreader Xpdf

- [CVE-2022-38928](https://insights.sbomify.com/CVE-2022-38928/): Null dereference in n/a (high 7.8)
- [CVE-2022-38222](https://insights.sbomify.com/CVE-2022-38222/): Use after free in n/a (high 7.8)
- [CVE-2022-33108](https://insights.sbomify.com/CVE-2022-33108/): Memory corruption in n/a (high 7.8)
- [CVE-2022-30524](https://insights.sbomify.com/CVE-2022-30524/): Memory corruption in n/a (high 7.8)
- [CVE-2020-24996](https://insights.sbomify.com/CVE-2020-24996/): Memory corruption in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-45587 and fix it if it is affected.

What it is: CVE-2022-45587 is a medium-severity memory corruption vulnerability in Xpdfreader Xpdf, published on 15 Feb 2023. 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-45587 exists.

Affected product: Xpdfreader Xpdf. 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-2022-45587/ (Markdown: https://insights.sbomify.com/CVE-2022-45587/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-45587
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-45587
- OSV: https://osv.dev/vulnerability/CVE-2022-45587

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-45587/
Summaries are generated and may contain mistakes; the official description above is the record.