# CVE-2000-0973: Memory corruption in n/a

> Remote attackers can execute arbitrary commands via a buffer overflow in the curl library triggered by long error messages.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 22 Jan 2001
- **Updated:** 8 Aug 2024
- **Also known as:** CURL-CVE-2000-0973, GHSA-4g26-v2fv-8g5f

## What is CVE-2000-0973?

CVE-2000-0973 is a critical memory corruption vulnerability in n/a, published on 22 Jan 2001. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Buffer overflow in curl earlier than 6.0-1.1, and curl-ssl earlier than 6.0-1.2, allows remote attackers to execute arbitrary commands by forcing a long error message to be generated.

## Which versions are affected by CVE-2000-0973?

It affects 1 product.


Products: Daniel Stenberg Curl.

## How do I fix CVE-2000-0973?

Upgrade to a fixed version.

## Is CVE-2000-0973 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2000-0973 exists.

Public exploit code:

- cURL 6.1 < 7.4 - Remote Buffer Overflow (1) (exploitdb)
- cURL 6.1 < 7.4 - Remote Buffer Overflow (2) (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2006-1061](https://insights.sbomify.com/CVE-2006-1061/): Memory corruption in n/a (high 7.5)
- [CVE-2005-4077](https://insights.sbomify.com/CVE-2005-4077/): Integer overflow in n/a (medium 4.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2000-0973 and fix it if it is affected.

What it is: CVE-2000-0973 is a critical memory corruption vulnerability in n/a, published on 22 Jan 2001. 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-2000-0973 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-2000-0973/ (Markdown: https://insights.sbomify.com/CVE-2000-0973/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2000-0973
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2000-0973
- OSV: https://osv.dev/vulnerability/CVE-2000-0973

---
From sbomify Insights: https://insights.sbomify.com/CVE-2000-0973/
Summaries are generated and may contain mistakes; the official description above is the record.