# Cis Ubuntu1204 V110 4 4

> Disable Prelink

- Skill: `cyberstrikeus/cis-ubuntu1204-v110-4-4` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-ubuntu1204-v110-4-4`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-ubuntu1204-v110-4-4/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: cyberstrikeus (https://skillmd.com/u/cyberstrikeus)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cyberstrikeus/cis-ubuntu1204-v110-4-4

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# 4.4 Disable Prelink (Scored)

## Profile Applicability

- Level 1

## Description

The prelinking feature changes binaries in an attempt to decrease their startup time.

## Rationale

The prelinking feature can interfere with the operation of AIDE, because it changes binaries. Prelinking can also increase the vulnerability of the system if a malicious user is able to compromise a common library such as libc.

## Audit Procedure

### Using Command Line

Run the following command:

```bash
dpkg -s prelink
```

## Expected Result

Ensure package status is not-installed or dpkg returns no info is available.

## Remediation

### Using Command Line

Run the command to restore binaries to a normal, non-prelinked state:

```bash
/usr/sbin/prelink -ua
```

Then remove prelink:

```bash
apt-get purge prelink
```

## Default Value

By default, prelink is not installed on Ubuntu 12.04.

## References

- CIS Ubuntu 12.04 LTS Server Benchmark v1.1.0

## Profile

Level 1 - Scored