# CVE-2010-4756: Denial of service in n/a

> Remote authenticated users can cause denial of service via crafted glob expressions in glibc, impacting system availability.

- **Severity:** Medium 4.0 (`AV:N/AC:L/Au:S/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 2 Mar 2011
- **Updated:** 3 Nov 2025
- **Also known as:** AZL-38437, DEBIAN-CVE-2010-4756, GHSA-x2r9-jfjp-jvp9, MINI-7w58-rgjp-q5qv, MINI-8fq4-p7r9-vcm5, MINI-8v7p-qh7g-9jg6

## What is CVE-2010-4756?

CVE-2010-4756 is a medium-severity denial of service vulnerability in Gnu Glibc, published on 2 Mar 2011. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The glob implementation in the GNU C Library (aka glibc or libc6) allows remote authenticated users to cause a denial of service (CPU and memory consumption) via crafted glob expressions that do not match any pathnames, as demonstrated by glob expressions in STAT commands to an FTP daemon, a different vulnerability than CVE-2010-2632.

Weakness: CWE-399

## Which versions are affected by CVE-2010-4756?

It affects 1 product.


Products: Gnu Glibc.

## How do I fix CVE-2010-4756?

Apply the vendor's patch.

## Is CVE-2010-4756 being exploited?

There is no known exploitation of CVE-2010-4756 in the wild and no public exploit code.

## Other vulnerabilities in Gnu Glibc

- [CVE-2026-5450](https://insights.sbomify.com/CVE-2026-5450/): scanf %mc off-by-one heap buffer overflow (critical 9.8)
- [CVE-2023-25139](https://insights.sbomify.com/CVE-2023-25139/): Memory corruption in n/a (critical 9.8)
- [CVE-1999-0199](https://insights.sbomify.com/CVE-1999-0199/): Other in n/a (critical 9.8)
- [CVE-2019-1010022](https://insights.sbomify.com/CVE-2019-1010022/): Security feature bypass in glibc (critical 9.8)
- [CVE-2005-3590](https://insights.sbomify.com/CVE-2005-3590/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2010-4756 and fix it if it is affected.

What it is: CVE-2010-4756 is a medium-severity denial of service vulnerability in Gnu Glibc, published on 2 Mar 2011. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2010-4756 in the wild and no public exploit code.

Affected product: Gnu Glibc. 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-2010-4756/ (Markdown: https://insights.sbomify.com/CVE-2010-4756/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2010-4756
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2010-4756
- OSV: https://osv.dev/vulnerability/CVE-2010-4756

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From sbomify Insights: https://insights.sbomify.com/CVE-2010-4756/
Summaries are generated and may contain mistakes; the official description above is the record.