CVE-2018-7548
9.8
CRITICAL
CVSS 3.1
EPSS 0.37%
Description
In subst.c in zsh through 5.4.2, there is a NULL pointer dereference when using ${(PA)...} on an empty array result.
How to fix CVE-2018-7548
To remediate CVE-2018-7548, upgrade the affected package to a fixed version below.
- Debian/zsh—upgrade to 5.5-1 or later
Is CVE-2018-7548 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 5.5-1
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 |