# CVE-2014-3493: Memory corruption in n/a

> Remote authenticated users can crash the Samba daemon via memory corruption when handling specific Unicode path requests.

- **Severity:** Low 2.7 (`AV:A/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:** 23 Jun 2014
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2014-3493, ECHO-a68f-2cd0-6978, GHSA-9g8v-m7jx-fffq, UBUNTU-CVE-2014-3493

## What is CVE-2014-3493?

CVE-2014-3493 is a low-severity memory corruption vulnerability in Samba Samba, published on 23 Jun 2014. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The push_ascii function in smbd in Samba 3.6.x before 3.6.24, 4.0.x before 4.0.19, and 4.1.x before 4.1.9 allows remote authenticated users to cause a denial of service (memory corruption and daemon crash) via an attempt to read a Unicode pathname without specifying use of Unicode, leading to a character-set conversion failure that triggers an invalid pointer dereference.

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

## Which versions are affected by CVE-2014-3493?

It affects 1 product.


Products: Samba Samba.

## How do I fix CVE-2014-3493?

Upgrade to a fixed version.

## Is CVE-2014-3493 being exploited?

There is no known exploitation of CVE-2014-3493 in the wild and no public exploit code.

## Other vulnerabilities in Samba Samba

- [CVE-2012-1182](https://insights.sbomify.com/CVE-2012-1182/): Integer overflow in n/a (critical 10.0)
- [CVE-2007-2446](https://insights.sbomify.com/CVE-2007-2446/): Memory corruption in n/a (critical 10.0)
- [CVE-2004-0600](https://insights.sbomify.com/CVE-2004-0600/): Memory corruption in n/a (critical 10.0)
- [CVE-1999-0810](https://insights.sbomify.com/CVE-1999-0810/): Denial of service in n/a (critical 10.0)
- [CVE-1999-0182](https://insights.sbomify.com/CVE-1999-0182/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-3493 and fix it if it is affected.

What it is: CVE-2014-3493 is a low-severity memory corruption vulnerability in Samba Samba, published on 23 Jun 2014. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2014-3493 in the wild and no public exploit code.

Affected product: Samba Samba. 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-2014-3493/ (Markdown: https://insights.sbomify.com/CVE-2014-3493/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-3493
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-3493
- OSV: https://osv.dev/vulnerability/CVE-2014-3493

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-3493/
Summaries are generated and may contain mistakes; the official description above is the record.