# CVE-2011-5268: Denial of service in n/a

> Remote attackers can cause a denial of service in Bip IRC proxy by triggering file descriptor exhaustion through multiple failed SSL handshakes.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:N/I:N/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:** 24 Dec 2013
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2011-5268, GHSA-w599-7m7q-hvh9

## What is CVE-2011-5268?

CVE-2011-5268 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 24 Dec 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

connection.c in Bip before 0.8.9 does not properly close sockets, which allows remote attackers to cause a denial of service (file descriptor consumption and crash) via multiple failed SSL handshakes, a different vulnerability than CVE-2013-4550.  NOTE: this issue was SPLIT from CVE-2013-4550 because it is a different type of issue.

Weakness: CWE-310

## Which versions are affected by CVE-2011-5268?

It affects 2 products.


Products: Duckcorp Bip, Fedoraproject Fedora.

## How do I fix CVE-2011-5268?

Upgrade to a fixed version.

## Is CVE-2011-5268 being exploited?

There is no known exploitation of CVE-2011-5268 in the wild and no public exploit code.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2012-0806](https://insights.sbomify.com/CVE-2012-0806/): Memory corruption in n/a (medium 6.5)
- [CVE-2013-4550](https://insights.sbomify.com/CVE-2013-4550/): Other in n/a (medium 5.1)
- [CVE-2010-3071](https://insights.sbomify.com/CVE-2010-3071/): Null dereference in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-5268 and fix it if it is affected.

What it is: CVE-2011-5268 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 24 Dec 2013. 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-2011-5268 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-2011-5268/ (Markdown: https://insights.sbomify.com/CVE-2011-5268/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-5268
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-5268
- OSV: https://osv.dev/vulnerability/CVE-2011-5268

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-5268/
Summaries are generated and may contain mistakes; the official description above is the record.