# CVE-2003-0264: Memory corruption in n/a

> Remote attackers can execute arbitrary code on SLMail servers via buffer overflows in EHLO, XTRN, POPPASSWD, or POP3 password handling.

- **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:** Not needed
- **Fix available:** No
- **Published:** 8 May 2003
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-5mc6-vfr3-gfp6

## What is CVE-2003-0264?

CVE-2003-0264 is a high-severity memory corruption vulnerability in n/a, published on 8 May 2003. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Multiple buffer overflows in SLMail 5.1.0.4420 allows remote attackers to execute arbitrary code via (1) a long EHLO argument to slmail.exe, (2) a long XTRN argument to slmail.exe, (3) a long string to POPPASSWD, or (4) a long password to the POP3 server.

## Which versions are affected by CVE-2003-0264?

It affects 1 product.


Products: Seattle Lab Software Slmail.

## How do I fix CVE-2003-0264?

No fix has been published for CVE-2003-0264 yet. Limit exposure of the affected software until one is available.

## Is CVE-2003-0264 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2003-0264 exists.

Public exploit code:

- Classic stack-based buffer overflow in SLMail 5.1 showing how early mail servers could be compromised through oversized SMTP and POP3 commands. (github_poc): https://github.com/TheMalwareGuardian/CVE-2003-0264
- Seattle Lab Mail 5.5 POP3 Buffer Overflow (metasploit)
- Seattle Lab Mail (SLmail) 5.5 - POP3 'PASS' Remote Buffer Overflow (1) (exploitdb)
- Seattle Lab Mail (SLmail) 5.5 - POP3 'PASS' Remote Buffer Overflow (2) (exploitdb)
- Seattle Lab Mail (SLmail) 5.5 - POP3 'PASS' Remote Buffer Overflow (3) (exploitdb)
- Seattle Lab Mail (SLmail) 5.5 - POP3 'PASS' Remote Buffer Overflow (Metasploit) (exploitdb)

## Other vulnerabilities in n/a

- [CVE-1999-0102](https://insights.sbomify.com/CVE-1999-0102/): Memory corruption in n/a (high 7.5)
- [CVE-1999-0231](https://insights.sbomify.com/CVE-1999-0231/): Memory corruption in n/a (medium 5.0)
- [CVE-1999-0380](https://insights.sbomify.com/CVE-1999-0380/): Path traversal in n/a (medium 4.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2003-0264 and fix it if it is affected.

What it is: CVE-2003-0264 is a high-severity memory corruption vulnerability in n/a, published on 8 May 2003. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2003-0264 exists.

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-2003-0264/ (Markdown: https://insights.sbomify.com/CVE-2003-0264/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2003-0264
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2003-0264
- OSV: https://osv.dev/vulnerability/CVE-2003-0264

---
From sbomify Insights: https://insights.sbomify.com/CVE-2003-0264/
Summaries are generated and may contain mistakes; the official description above is the record.