CVE-2018-7738
HIGH7.8EPSS 0.05%util-linux - security update
Published: 3/7/2018Modified: 4/28/2026
Description
In util-linux before 2.32-rc1, bash-completion/umount allows local users to gain privileges by embedding shell commands in a mountpoint name, which is mishandled during a umount command (within Bash) by a different user, as demonstrated by logging in as root and entering umount followed by a tab character for autocompletion.
Affected packages (3)
- Debian/bash-completionfrom 0
- Debian/util-linuxfrom 0, < 2.31.1-0.5
- Debian/util-linuxfrom 0, < 2.29.2-1+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |