# CVE-2018-7714: Denial of service in n/a

> Remote attackers can cause a denial of service via assertion failure in OpenCV's image size validation function.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Mar 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-2862-4mgm-j6fv, UBUNTU-CVE-2018-7714

## What is CVE-2018-7714?

CVE-2018-7714 is a high-severity denial of service vulnerability in n/a, published on 5 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The validateInputImageSize function in modules/imgcodecs/src/loadsave.cpp in OpenCV 3.4.1 allows remote attackers to cause a denial of service (assertion failure) because (pixels <= (1<<30)) may be false. Note: “OpenCV CV_Assert is not an assertion (C-like assert()), it is regular C++ exception which can raised in case of invalid or non-supported parameters.

Weakness: CWE-617 (Reachable Assertion)

## Which versions are affected by CVE-2018-7714?

It affects 1 product.


Products: Opencv Opencv.

## How do I fix CVE-2018-7714?

No fix has been published for CVE-2018-7714 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-7714 being exploited?

There is no known exploitation of CVE-2018-7714 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2019-5063](https://insights.sbomify.com/CVE-2019-5063/): Out-of-bounds Write in OpenCV (high 8.8)
- [CVE-2019-5064](https://insights.sbomify.com/CVE-2019-5064/): Out-of-bounds Write in OpenCV (high 8.8)
- [CVE-2019-14491](https://insights.sbomify.com/CVE-2019-14491/): Out-of-bounds Read in OpenCV (high 8.2)
- [CVE-2019-14492](https://insights.sbomify.com/CVE-2019-14492/): Out-of-bounds Read and Out-of-bounds Write in OpenCV (high 7.5)
- [CVE-2018-7712](https://insights.sbomify.com/CVE-2018-7712/): Denial of service in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-7714 and fix it if it is affected.

What it is: CVE-2018-7714 is a high-severity denial of service vulnerability in n/a, published on 5 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-7714 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-2018-7714/ (Markdown: https://insights.sbomify.com/CVE-2018-7714/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-7714
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-7714
- OSV: https://osv.dev/vulnerability/CVE-2018-7714

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-7714/
Summaries are generated and may contain mistakes; the official description above is the record.