# CVE-2018-12447: Integer overflow in n/a

> An integer overflow in libavcodec's HEVC filter allows remote attackers to execute arbitrary code via crafted media files.

- **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:** 15 Jun 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-jwq7-3mj8-j9gm

## What is CVE-2018-12447?

CVE-2018-12447 is a high-severity vulnerability in n/a, published on 15 Jun 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

The restore_tqb_pixels function in hevc_filter.c in libavcodec, as used in libbpg 0.9.8 and other products, has an integer overflow that leads to a heap-based buffer overflow and remote code execution.

Weakness: CWE-787 (Out-of-bounds Write), CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2018-12447?

It affects 1 product.


Products: Libbpg Project Libbpg.

## How do I fix CVE-2018-12447?

No fix has been published for CVE-2018-12447 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-12447 being exploited?

There is no known exploitation of CVE-2018-12447 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-13136](https://insights.sbomify.com/CVE-2017-13136/): Integer overflow in n/a (high 8.8)
- [CVE-2017-14034](https://insights.sbomify.com/CVE-2017-14034/): Memory corruption in n/a (high 8.8)
- [CVE-2017-14795](https://insights.sbomify.com/CVE-2017-14795/): Memory corruption in n/a (high 8.8)
- [CVE-2017-14796](https://insights.sbomify.com/CVE-2017-14796/): Integer overflow in n/a (high 8.8)
- [CVE-2017-14734](https://insights.sbomify.com/CVE-2017-14734/): Memory corruption in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-12447 and fix it if it is affected.

What it is: CVE-2018-12447 is a high-severity vulnerability in n/a, published on 15 Jun 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-2018-12447 in the wild and no public exploit code.

Affected product: n/a. 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-2018-12447/ (Markdown: https://insights.sbomify.com/CVE-2018-12447/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-12447
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-12447
- OSV: https://osv.dev/vulnerability/CVE-2018-12447

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-12447/
Summaries are generated and may contain mistakes; the official description above is the record.