CVE-2019-20044
Published: 24 February 2020
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().
Notes
| Author | Note |
|---|---|
| mdeslaur | reproducer in debian bug low priority since upstream considers this to be a "minor vulnerability" |
| rodrigo-zaiden | affects versions prior to 5.8, so only xenial and bionic needed to be patched. |
Priority
Low
CVSS 3 base score: 7.8