# CVE-2007-3771: Memory corruption in n/a

> Local attackers can crash the Symantec AntiVirus service by sending emails with excessively long headers, causing a denial of service.

- **Severity:** Medium 4.6 (`AV:L/AC:L/Au:S/C:N/I:N/A:C`)
- **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:** 15 Jul 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-f844-8gxq-37w7

## What is CVE-2007-3771?

CVE-2007-3771 is a medium-severity memory corruption vulnerability in Symantec Norton Antivirus, published on 15 Jul 2007. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Stack-based buffer overflow in the Internet E-mail Auto-Protect feature in Symantec AntiVirus Corporate Edition before 10.1, and Client Security before 3.1, allows local users to cause a denial of service (service crash) via a long (1) To, (2) From, or (3) Subject header in an outbound SMTP e-mail message.  NOTE: the original vendor advisory referenced CVE-2006-3456, but this was an error.

## Which versions are affected by CVE-2007-3771?

It affects 2 products.


Products: Symantec Client Security, Symantec Norton Antivirus.

## How do I fix CVE-2007-3771?

No fix has been published for CVE-2007-3771 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-3771 being exploited?

There is no known exploitation of CVE-2007-3771 in the wild and no public exploit code.

## Other vulnerabilities in Symantec Norton Antivirus

- [CVE-2006-2630](https://insights.sbomify.com/CVE-2006-2630/): Memory corruption in n/a (critical 10.0)
- [CVE-2010-0107](https://insights.sbomify.com/CVE-2010-0107/): Memory corruption in n/a (critical 9.3)
- [CVE-2007-3095](https://insights.sbomify.com/CVE-2007-3095/): Auth bypass in n/a (critical 9.0)
- [CVE-2007-3021](https://insights.sbomify.com/CVE-2007-3021/): File upload in n/a (high 7.5)
- [CVE-2006-3454](https://insights.sbomify.com/CVE-2006-3454/): Memory corruption in n/a (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-3771 and fix it if it is affected.

What it is: CVE-2007-3771 is a medium-severity memory corruption vulnerability in Symantec Norton Antivirus, published on 15 Jul 2007. 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-2007-3771 in the wild and no public exploit code.

Affected product: Symantec Norton Antivirus. 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-2007-3771/ (Markdown: https://insights.sbomify.com/CVE-2007-3771/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-3771
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-3771
- OSV: https://osv.dev/vulnerability/CVE-2007-3771

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-3771/
Summaries are generated and may contain mistakes; the official description above is the record.