CVE-2017-9525
cron - security update
6.7
MEDIUM
CVSS 3.1
EPSS 0.06%
Description
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.
How to fix CVE-2017-9525
To remediate CVE-2017-9525, upgrade the affected package to a fixed version below.
- Debian/cron—upgrade to 3.0pl1-129 or later
- —upgrade to 3.0pl1-127+deb8u2 or later
- —upgrade to 3.0pl1-128+deb9u2 or later
- —no fix listed
Is CVE-2017-9525 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 3.0pl1-129
- from 0, < 3.0pl1-127+deb8u2
- from 0, < 3.0pl1-128+deb9u2
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |