CVE-2017-18206
zsh - security update
9.8
CRITICAL
CVSS 3.1
EPSS 0.40%
Description
In utils.c in zsh before 5.4, symlink expansion had a buffer overflow.
How to fix CVE-2017-18206
To remediate CVE-2017-18206, upgrade the affected package to a fixed version below.
- Debian/zsh—upgrade to 5.4.1-1 or later
- Debian/zsh—upgrade to 5.3.1-4+deb9u1 or later
Is CVE-2017-18206 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 5.4.1-1
- from 0, < 5.3.1-4+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |