# CVE-2003-0167: Memory corruption in n/a

> A remote malicious IMAP server can trigger buffer overflows in Mutt or Balsa email clients, potentially allowing arbitrary code execution or crashes.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **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:** Yes
- **Published:** 29 Mar 2003
- **Updated:** 8 Aug 2024
- **Also known as:** DEBIAN-CVE-2003-0167, DSA-274, DSA-300, GHSA-v7m5-jjhm-hp24

## What is CVE-2003-0167?

CVE-2003-0167 is a high-severity memory corruption vulnerability in n/a, published on 29 Mar 2003. 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

Multiple off-by-one buffer overflows in the IMAP capability for Mutt 1.3.28 and earlier, and Balsa 1.2.4 and earlier, allow a remote malicious IMAP server to cause a denial of service (crash) and possibly execute arbitrary code via a specially crafted mail folder, a different vulnerability than CVE-2003-0140.

## Which versions are affected by CVE-2003-0167?

It affects 1 product.


Products: Mutt Mutt.

## How do I fix CVE-2003-0167?

Upgrade to a fixed version.

## Is CVE-2003-0167 being exploited?

There is no known exploitation of CVE-2003-0167 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-32055](https://insights.sbomify.com/CVE-2021-32055/): Memory corruption in n/a (critical 9.1)
- [CVE-2006-3242](https://insights.sbomify.com/CVE-2006-3242/): Memory corruption in n/a (high 7.5)
- [CVE-2005-2642](https://insights.sbomify.com/CVE-2005-2642/): Memory corruption in n/a (high 7.5)
- [CVE-2004-0078](https://insights.sbomify.com/CVE-2004-0078/): Memory corruption in n/a (high 7.5)
- [CVE-2003-0299](https://insights.sbomify.com/CVE-2003-0299/): Integer overflow in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2003-0167 and fix it if it is affected.

What it is: CVE-2003-0167 is a high-severity memory corruption vulnerability in n/a, published on 29 Mar 2003. 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-2003-0167 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-2003-0167/ (Markdown: https://insights.sbomify.com/CVE-2003-0167/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2003-0167
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2003-0167
- OSV: https://osv.dev/vulnerability/CVE-2003-0167

---
From sbomify Insights: https://insights.sbomify.com/CVE-2003-0167/
Summaries are generated and may contain mistakes; the official description above is the record.