# CVE-2015-3294: Information disclosure in n/a

> Remote attackers can read process memory and crash the Dnsmasq server by sending malformed DNS requests due to improper return value handling.

- **Severity:** Medium 6.4 (`AV:N/AC:L/Au:N/C:P/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:** 8 May 2015
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2015-3294, DLA-225-1, DSA-3251-1, GHSA-68qg-cgxp-wxcf, MGASA-2015-0214, SUSE-SU-2015:0979-1, SUSE-SU-2015:0979-2, SUSE-SU-2015:1015-1, UBUNTU-CVE-2015-3294, USN-2593-1

## What is CVE-2015-3294?

CVE-2015-3294 is a medium-severity vulnerability in Oracle Solaris, published on 8 May 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The tcp_request function in Dnsmasq before 2.73rc4 does not properly handle the return value of the setup_reply function, which allows remote attackers to read process memory and cause a denial of service (out-of-bounds read and crash) via a malformed DNS request.

Weakness: CWE-19

## Which versions are affected by CVE-2015-3294?

It affects 2 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `dnsmasq` | SUSE:Cloud Compute Node for SUSE Linux Enterprise 12 5 | All versions | 2.71-4.1 |
| `dnsmasq` | SUSE:Linux Enterprise Desktop 12 | All versions | 2.71-4.1 |
| `dnsmasq` | SUSE:Linux Enterprise Server 12 | All versions | 2.71-4.1 |
| `dnsmasq` | SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 2.71-4.1 |

Products: Oracle Solaris, Thekelleys Dnsmasq.

## How do I fix CVE-2015-3294?

Upgrade to a fixed version.

## Is CVE-2015-3294 being exploited?

There is no known exploitation of CVE-2015-3294 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Solaris

- [CVE-2020-14871](https://insights.sbomify.com/CVE-2020-14871/): Oracle Solaris and Zettabyte File System (ZFS) Unspecified (critical 10.0, exploited in the wild)
- [CVE-2019-3010](https://insights.sbomify.com/CVE-2019-3010/): Oracle Solaris Privilege Escalation (high 8.8, exploited in the wild)
- [CVE-2026-46978](https://insights.sbomify.com/CVE-2026-46978/): Missing authorization in Oracle Solaris (critical 10.0)
- [CVE-2017-3623](https://insights.sbomify.com/CVE-2017-3623/): Other in Solaris Operating System (critical 10.0)
- [CVE-2014-0397](https://insights.sbomify.com/CVE-2014-0397/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-3294 and fix it if it is affected.

What it is: CVE-2015-3294 is a medium-severity vulnerability in Oracle Solaris, published on 8 May 2015. 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-2015-3294 in the wild and no public exploit code.

Affected product: Oracle Solaris. 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-2015-3294/ (Markdown: https://insights.sbomify.com/CVE-2015-3294/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-3294
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-3294
- OSV: https://osv.dev/vulnerability/CVE-2015-3294

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-3294/
Summaries are generated and may contain mistakes; the official description above is the record.