# CVE-2023-23143: Memory corruption in n/a

> A buffer overflow in GPAC's AVC parser allows attackers to execute arbitrary code or cause denial of service via crafted media files.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/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:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 20 Jan 2023
- **Updated:** 3 Apr 2025
- **Also known as:** DEBIAN-CVE-2023-23143, GHSA-fprm-w7rf-hq2c, UBUNTU-CVE-2023-23143

## What is CVE-2023-23143?

CVE-2023-23143 is a high-severity memory corruption vulnerability in Gpac Gpac, published on 20 Jan 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

Buffer overflow vulnerability in function avc_parse_slice in file media_tools/av_parsers.c. GPAC version 2.3-DEV-rev1-g4669ba229-master.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2023-23143?

It affects 1 product.


Products: Gpac Gpac.

## How do I fix CVE-2023-23143?

Upgrade to a fixed version.

## Is CVE-2023-23143 being exploited?

There is no known exploitation of CVE-2023-23143 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-2023-23143 and fix it if it is affected.

What it is: CVE-2023-23143 is a high-severity memory corruption vulnerability in Gpac Gpac, published on 20 Jan 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: There is no known exploitation of CVE-2023-23143 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-2023-23143/ (Markdown: https://insights.sbomify.com/CVE-2023-23143/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-23143
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-23143
- OSV: https://osv.dev/vulnerability/CVE-2023-23143

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-23143/
Summaries are generated and may contain mistakes; the official description above is the record.