# CVE-2019-5084: Memory corruption in LEADTOOLS

> A heap out-of-bounds write in LEADTOOLS allows attackers to execute arbitrary code via a specially crafted TIF image.

- **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:** 6 Nov 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-5j6f-38h6-8r9g

## What is CVE-2019-5084?

CVE-2019-5084 is a high-severity memory corruption vulnerability in LEADTOOLS, published on 6 Nov 2019. 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

An exploitable heap out-of-bounds write vulnerability exists in the TIF-parsing functionality of LEADTOOLS 20. A specially crafted TIF image can cause an offset beyond the bounds of a heap allocation to be written, potentially resulting in code execution. An attacker can specially craft a TIF image to trigger this vulnerability.

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

## Which versions are affected by CVE-2019-5084?

It affects 1 product.


Products: Leadtools Leadtools.

## How do I fix CVE-2019-5084?

No fix has been published for CVE-2019-5084 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-5084 being exploited?

There is no known exploitation of CVE-2019-5084 in the wild and no public exploit code.

## Other vulnerabilities in LEADTOOLS

- [CVE-2019-5085](https://insights.sbomify.com/CVE-2019-5085/): Integer overflow in LEADTOOLS libltdic.so (critical 9.8)
- [CVE-2019-5090](https://insights.sbomify.com/CVE-2019-5090/): Information disclosure in LEADTOOLS libltdic.so (critical 9.1)
- [CVE-2022-21154](https://insights.sbomify.com/CVE-2022-21154/): Integer overflow in Leadtools (high 8.8)
- [CVE-2020-6089](https://insights.sbomify.com/CVE-2020-6089/): Memory corruption in Leadtools (high 8.8)
- [CVE-2019-5092](https://insights.sbomify.com/CVE-2019-5092/): Memory corruption in LEADTOOLS (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-5084 and fix it if it is affected.

What it is: CVE-2019-5084 is a high-severity memory corruption vulnerability in LEADTOOLS, published on 6 Nov 2019. 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-2019-5084 in the wild and no public exploit code.

Affected product: LEADTOOLS. 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-2019-5084/ (Markdown: https://insights.sbomify.com/CVE-2019-5084/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-5084
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-5084
- OSV: https://osv.dev/vulnerability/CVE-2019-5084

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-5084/
Summaries are generated and may contain mistakes; the official description above is the record.