# CVE-2017-9977: Security feature bypass in n/a

> Remote attackers can bypass malware detection in AVG AntiVirus for MacOS by hiding malicious content inside DMG files.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Jul 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-h3qh-4wmf-6pvg

## What is CVE-2017-9977?

CVE-2017-9977 is a high-severity vulnerability in n/a, published on 12 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

AVG AntiVirus for MacOS with scan engine before 4668 might allow remote attackers to bypass malware detection by leveraging failure to scan inside disk image (aka DMG) files.

## Which versions are affected by CVE-2017-9977?

It affects 1 product.


Products: Avg Anti-Virus.

## How do I fix CVE-2017-9977?

No fix has been published for CVE-2017-9977 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-9977 being exploited?

There is no known exploitation of CVE-2017-9977 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-5566](https://insights.sbomify.com/CVE-2017-5566/): Code injection in n/a (medium 6.7)
- [CVE-2010-3498](https://insights.sbomify.com/CVE-2010-3498/): Security feature bypass in n/a (medium 6.4)
- [CVE-2019-18654](https://insights.sbomify.com/CVE-2019-18654/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-9977 and fix it if it is affected.

What it is: CVE-2017-9977 is a high-severity vulnerability in n/a, published on 12 Jul 2017. 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-2017-9977 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-2017-9977/ (Markdown: https://insights.sbomify.com/CVE-2017-9977/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-9977
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-9977
- OSV: https://osv.dev/vulnerability/CVE-2017-9977

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-9977/
Summaries are generated and may contain mistakes; the official description above is the record.