# CVE-2007-0157: Denial of service in n/a

> Remote attackers can crash applications using the neon library by sending URIs with non-ASCII characters, causing a buffer under-read.

- **Severity:** High 7.8 (`AV:N/AC:L/Au:N/C:N/I:N/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:** 9 Jan 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-gwwq-w362-7hgm

## What is CVE-2007-0157?

CVE-2007-0157 is a high-severity denial of service vulnerability in n/a, published on 9 Jan 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Array index error in the uri_lookup function in the URI parser for neon 0.26.0 to 0.26.2, possibly only on 64-bit platforms, allows remote malicious servers to cause a denial of service (crash) via a URI with non-ASCII characters, which triggers a buffer under-read due to a type conversion error that generates a negative index.

## Which versions are affected by CVE-2007-0157?

It affects 1 product.


Products: Neon Neon.

## How do I fix CVE-2007-0157?

Upgrade to a fixed version.

## Is CVE-2007-0157 being exploited?

There is no known exploitation of CVE-2007-0157 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-0157 and fix it if it is affected.

What it is: CVE-2007-0157 is a high-severity denial of service vulnerability in n/a, published on 9 Jan 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2007-0157 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-2007-0157/ (Markdown: https://insights.sbomify.com/CVE-2007-0157/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-0157
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-0157
- OSV: https://osv.dev/vulnerability/CVE-2007-0157

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From sbomify Insights: https://insights.sbomify.com/CVE-2007-0157/
Summaries are generated and may contain mistakes; the official description above is the record.