# CVE-2001-0547: Denial of service in n/a

> Local attackers can cause a denial of service in Microsoft ISA Server 2000 via a memory leak in the proxy service.

- **Severity:** Low 2.1 (`AV:L/AC:L/Au:N/C:N/I:N/A:P`)
- **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:** 9 Mar 2002
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-4jfp-q875-j8vm

## What is CVE-2001-0547?

CVE-2001-0547 is a low-severity denial of service vulnerability in n/a, published on 9 Mar 2002. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory leak in the proxy service in Microsoft Internet Security and Acceleration (ISA) Server 2000 allows local attackers to cause a denial of service (resource exhaustion).

## Which versions are affected by CVE-2001-0547?

It affects 1 product.


Products: Microsoft Isa Server.

## How do I fix CVE-2001-0547?

No fix has been published for CVE-2001-0547 yet. Limit exposure of the affected software until one is available.

## Is CVE-2001-0547 being exploited?

There is no known exploitation of CVE-2001-0547 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2006-7027](https://insights.sbomify.com/CVE-2006-7027/): Microsoft Internet Security and Acceleration (ISA) Server 2004 logs unusual ASCII characters in the Host header, including the tab, which al (critical 10.0)
- [CVE-2009-0562](https://insights.sbomify.com/CVE-2009-0562/): Memory corruption in n/a (critical 9.3)
- [CVE-2009-1534](https://insights.sbomify.com/CVE-2009-1534/): Memory corruption in n/a (critical 9.3)
- [CVE-2009-1136](https://insights.sbomify.com/CVE-2009-1136/): Code injection in n/a (critical 9.3)
- [CVE-2009-1135](https://insights.sbomify.com/CVE-2009-1135/): Auth bypass in n/a (critical 9.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2001-0547 and fix it if it is affected.

What it is: CVE-2001-0547 is a low-severity denial of service vulnerability in n/a, published on 9 Mar 2002. 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-2001-0547 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-2001-0547/ (Markdown: https://insights.sbomify.com/CVE-2001-0547/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2001-0547
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2001-0547
- OSV: https://osv.dev/vulnerability/CVE-2001-0547

---
From sbomify Insights: https://insights.sbomify.com/CVE-2001-0547/
Summaries are generated and may contain mistakes; the official description above is the record.