UBUNTU-CVE-2017-9525

In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks against unsafe usage of the chown and chmod programs.

References

Affected packages

Ubuntu:14.04:LTS / cron

Package

Name: cron
Purl: pkg:deb/ubuntu/cron@3.0pl1-124ubuntu2?arch=source&distro=trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.0pl1-124ubuntu2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "cron",
            "binary_version": "3.0pl1-124ubuntu2"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / cron

Package

Name: cron
Purl: pkg:deb/ubuntu/cron@3.0pl1-128ubuntu2+esm2?arch=source&distro=esm-infra/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.0pl1-128ubuntu2+esm2

Affected versions

3.*

3.0pl1-127ubuntu1

3.0pl1-128ubuntu1

3.0pl1-128ubuntu2

3.0pl1-128ubuntu2+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "cron",
            "binary_version": "3.0pl1-128ubuntu2+esm2"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:18.04:LTS / cron

Package

Name: cron
Purl: pkg:deb/ubuntu/cron@3.0pl1-128.1ubuntu1.2?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.0pl1-128.1ubuntu1.2

Affected versions

3.*

3.0pl1-128ubuntu5

3.0pl1-128.1ubuntu1

3.0pl1-128.1ubuntu1.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "cron",
            "binary_version": "3.0pl1-128.1ubuntu1.2"
        }
    ],
    "availability": "No subscription required"
}