# CVE-2013-4132: Null dereference in n/a

> Remote attackers can cause a denial of service via invalid inputs to KDM or KCheckPass when FIPS-140 is enabled.

- **Severity:** Medium 5.0 (`AV:N/AC:L/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:** 16 Sep 2013
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-4vrh-wr8w-rqg2

## What is CVE-2013-4132?

CVE-2013-4132 is a medium-severity vulnerability in Opensuse Opensuse, published on 16 Sep 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

KDE-Workspace 4.10.5 and earlier does not properly handle the return value of the glibc 2.17 crypt and pw_encrypt functions, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via (1) an invalid salt or a (2) DES or (3) MD5 encrypted password, when FIPS-140 is enable, to KDM or an (4) invalid password to KCheckPass.

Weakness: CWE-310

## Which versions are affected by CVE-2013-4132?

It affects 3 products.


Products: Kde Kde-Workspace, Kde Kde Sc, Opensuse Opensuse.

## How do I fix CVE-2013-4132?

Upgrade to a fixed version.

## Is CVE-2013-4132 being exploited?

There is no known exploitation of CVE-2013-4132 in the wild and no public exploit code.

## Other vulnerabilities in Opensuse Opensuse

- [CVE-2014-8651](https://insights.sbomify.com/CVE-2014-8651/): Privilege escalation in n/a (high 7.2)
- [CVE-2015-1308](https://insights.sbomify.com/CVE-2015-1308/): Information disclosure in n/a (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-4132 and fix it if it is affected.

What it is: CVE-2013-4132 is a medium-severity vulnerability in Opensuse Opensuse, published on 16 Sep 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-2013-4132 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-2013-4132/ (Markdown: https://insights.sbomify.com/CVE-2013-4132/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-4132
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-4132
- OSV: https://osv.dev/vulnerability/CVE-2013-4132

---
From sbomify Insights: https://insights.sbomify.com/CVE-2013-4132/
Summaries are generated and may contain mistakes; the official description above is the record.