# CVE-2019-14694: Use after free in n/a

> A use-after-free flaw in Comodo Antivirus allows attackers to cause a system crash via a race condition when running executables in the sandbox.

- **Severity:** Medium 4.7 (`CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Aug 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-875m-q5c9-g9v7

## What is CVE-2019-14694?

CVE-2019-14694 is a medium-severity use after free vulnerability in n/a, published on 28 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A use-after-free flaw in the sandbox container implemented in cmdguard.sys in Comodo Antivirus 12.0.0.6870 can be triggered due to a race condition when handling IRP_MJ_CLEANUP requests in the minifilter for directory change notifications. This allows an attacker to cause a denial of service (BSOD) when an executable is run inside the container.

Weakness: CWE-416 (Use After Free), CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization)

## Which versions are affected by CVE-2019-14694?

It affects 1 product.


Products: Comodo Antivirus.

## How do I fix CVE-2019-14694?

No fix has been published for CVE-2019-14694 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-14694 being exploited?

There is no known exploitation of CVE-2019-14694 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2022-34008](https://insights.sbomify.com/CVE-2022-34008/): Privilege escalation in n/a (high 7.8)
- [CVE-2019-3969](https://insights.sbomify.com/CVE-2019-3969/): Privilege escalation in Comodo Antivirus (high 7.8)
- [CVE-2019-14270](https://insights.sbomify.com/CVE-2019-14270/): Privilege escalation in n/a (high 7.1)
- [CVE-2019-3970](https://insights.sbomify.com/CVE-2019-3970/): Missing authorization in Comodo Antivirus (medium 5.5)
- [CVE-2019-3971](https://insights.sbomify.com/CVE-2019-3971/): Null dereference in Comodo Antivirus (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-14694 and fix it if it is affected.

What it is: CVE-2019-14694 is a medium-severity use after free vulnerability in n/a, published on 28 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-14694 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-2019-14694/ (Markdown: https://insights.sbomify.com/CVE-2019-14694/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-14694
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-14694
- OSV: https://osv.dev/vulnerability/CVE-2019-14694

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-14694/
Summaries are generated and may contain mistakes; the official description above is the record.