CVE-2019-20044
zsh - security update
7.8
HIGH
CVSS 3.1
EPSS 0.09%
Description
In Zsh before 5.8, attackers able to execute commands can regain privileges dropped by the --no-PRIVILEGED option. Zsh fails to overwrite the saved uid, so the original privileges can be restored by executing MODULE_PATH=/dir/with/module zmodload with a module that calls setuid().
How to fix CVE-2019-20044
To remediate CVE-2019-20044, upgrade the affected package to a fixed version below.
- —upgrade to 5.8-r0 or later
- —upgrade to 5.8-1 or later
- —upgrade to 5.0.7-5+deb8u1 or later
Is CVE-2019-20044 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 5.8-r0
- from 0, < 5.8-1
- from 0, < 5.0.7-5+deb8u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |