# CVE-2021-45258: Memory corruption in n/a

> A stack overflow in the GPAC library allows attackers to cause a segmentation fault and application crash via crafted BIFS data.

- **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:** No
- **Published:** 22 Dec 2021
- **Updated:** 4 Aug 2024
- **Also known as:** DEBIAN-CVE-2021-45258, GHSA-jv2f-7w4m-379g, UBUNTU-CVE-2021-45258

## What is CVE-2021-45258?

CVE-2021-45258 is a medium-severity memory corruption vulnerability in Gpac Gpac, published on 22 Dec 2021. 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

A stack overflow vulnerability exists in gpac 1.1.0 via the gf_bifs_dec_proto_list function, which causes a segmentation fault and application crash.

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

## Which versions are affected by CVE-2021-45258?

It affects 1 product.


Products: Gpac Gpac.

## How do I fix CVE-2021-45258?

No fix has been published for CVE-2021-45258 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-45258 being exploited?

There is no known exploitation of CVE-2021-45258 in the wild and no public exploit code.

## Other vulnerabilities in Gpac Gpac

- [CVE-2023-46427](https://insights.sbomify.com/CVE-2023-46427/): Null dereference in n/a (critical 9.8)
- [CVE-2023-46932](https://insights.sbomify.com/CVE-2023-46932/): Memory corruption in n/a (critical 9.8)
- [CVE-2022-36190](https://insights.sbomify.com/CVE-2022-36190/): Use after free in n/a (critical 9.8)
- [CVE-2021-28300](https://insights.sbomify.com/CVE-2021-28300/): Null dereference in n/a (critical 9.8)
- [CVE-2020-11558](https://insights.sbomify.com/CVE-2020-11558/): Use after free in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-45258 and fix it if it is affected.

What it is: CVE-2021-45258 is a medium-severity memory corruption vulnerability in Gpac Gpac, published on 22 Dec 2021. 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-2021-45258 in the wild and no public exploit code.

Affected product: Gpac Gpac. 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-2021-45258/ (Markdown: https://insights.sbomify.com/CVE-2021-45258/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-45258
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-45258
- OSV: https://osv.dev/vulnerability/CVE-2021-45258

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-45258/
Summaries are generated and may contain mistakes; the official description above is the record.