CVE-2018-7738

High

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.

SeverityHigh

CVSS7.8

Exploit probability—

ProductKernel Util-linux

PublishedMar 7, 2018

First seenMar 7, 2018

How to fix

Vendor advisories

debian.org/security/2018/dsa-4134
usn.ubuntu.com/4512-1/

Affected products

Product	Affected versions	Fixed in
kernel util-linux	v ≤ 2.31	—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.