# CVE-2011-4315: Memory corruption in n/a

> Remote attackers can crash the nginx web server via a heap-based buffer overflow in resolver processing, causing denial of service.

- **Severity:** Medium 6.8 (`AV:N/AC:M/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:** Yes
- **Published:** 8 Dec 2011
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2011-4315, GHSA-v2v8-x9vm-wr66

## What is CVE-2011-4315?

CVE-2011-4315 is a medium-severity memory corruption vulnerability in Fedoraproject Fedora, published on 8 Dec 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Heap-based buffer overflow in compression-pointer processing in core/ngx_resolver.c in nginx before 1.0.10 allows remote resolvers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a long response.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2011-4315?

It affects 5 products.


Products: F5 Nginx, Fedoraproject Fedora, Suse Studio, Suse Studio Onsite, Suse Webyast.

## How do I fix CVE-2011-4315?

Upgrade to a fixed version.

## Is CVE-2011-4315 being exploited?

There is no known exploitation of CVE-2011-4315 in the wild and no public exploit code.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2016-1247](https://insights.sbomify.com/CVE-2016-1247/): Path traversal in n/a (high 7.8)
- [CVE-2021-23017](https://insights.sbomify.com/CVE-2021-23017/): Memory corruption in Nginx Web Server, Nginx Plus (high 7.7)
- [CVE-2014-0088](https://insights.sbomify.com/CVE-2014-0088/): Memory corruption in n/a (high 7.5)
- [CVE-2014-0133](https://insights.sbomify.com/CVE-2014-0133/): Memory corruption in n/a (high 7.5)
- [CVE-2013-4547](https://insights.sbomify.com/CVE-2013-4547/): Security feature bypass in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-4315 and fix it if it is affected.

What it is: CVE-2011-4315 is a medium-severity memory corruption vulnerability in Fedoraproject Fedora, published on 8 Dec 2011. 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-2011-4315 in the wild and no public exploit code.

Affected product: Fedoraproject Fedora. 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-2011-4315/ (Markdown: https://insights.sbomify.com/CVE-2011-4315/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-4315
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-4315
- OSV: https://osv.dev/vulnerability/CVE-2011-4315

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-4315/
Summaries are generated and may contain mistakes; the official description above is the record.