# CVE-2013-4115: Memory corruption in n/a

> Remote attackers can cause a denial of service in Squid proxy servers via a buffer overflow in DNS lookup processing.

- **Severity:** High 7.5 (`AV:N/AC:L/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:** 9 Aug 2013
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-8f69-q75r-2vcf, MGASA-2013-0227

## What is CVE-2013-4115?

CVE-2013-4115 is a high-severity memory corruption vulnerability in Opensuse Opensuse, published on 9 Aug 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Buffer overflow in the idnsALookup function in dns_internal.cc in Squid 3.2 through 3.2.11 and 3.3 through 3.3.6 allows remote attackers to cause a denial of service (memory corruption and server termination) via a long name in a DNS lookup request.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2013-4115?

It affects 2 products.


Products: Opensuse Opensuse, Squid-Cache Squid.

## How do I fix CVE-2013-4115?

Upgrade to a fixed version.

## Is CVE-2013-4115 being exploited?

There is no known exploitation of CVE-2013-4115 in the wild and no public exploit code.

## Other vulnerabilities in Opensuse Opensuse

- [CVE-2015-5957](https://insights.sbomify.com/CVE-2015-5957/): Memory corruption in n/a (critical 10.0)
- [CVE-2015-0491](https://insights.sbomify.com/CVE-2015-0491/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-2388](https://insights.sbomify.com/CVE-2008-2388/): Integer overflow in n/a (critical 10.0)
- [CVE-2010-1866](https://insights.sbomify.com/CVE-2010-1866/): Integer overflow in n/a (critical 9.8)
- [CVE-2015-0492](https://insights.sbomify.com/CVE-2015-0492/): Other in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-4115 and fix it if it is affected.

What it is: CVE-2013-4115 is a high-severity memory corruption vulnerability in Opensuse Opensuse, published on 9 Aug 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-2013-4115 in the wild and no public exploit code.

Affected product: Opensuse Opensuse. 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-2013-4115/ (Markdown: https://insights.sbomify.com/CVE-2013-4115/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-4115
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-4115
- OSV: https://osv.dev/vulnerability/CVE-2013-4115

---
From sbomify Insights: https://insights.sbomify.com/CVE-2013-4115/
Summaries are generated and may contain mistakes; the official description above is the record.