Privilege escalation in Util-linux - CVE-2018-7738
Published: March 13, 2018 / Updated: March 13, 2018
Vulnerability identifier: #VU10957
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2018-7738
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: kernel.org
Affected software:
Util-linux
Util-linux
Detailed vulnerability description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to insufficient validation of shell commands that are used in the name of a mountpoint. A local attacker can embed crafted shell commands in the name of a mountpoint. If another user on the system executes the umount command along with a tab character for autocomplete, the attacker can gain elevated privileges.
The weakness exists due to insufficient validation of shell commands that are used in the name of a mountpoint. A local attacker can embed crafted shell commands in the name of a mountpoint. If another user on the system executes the umount command along with a tab character for autocomplete, the attacker can gain elevated privileges.
How to mitigate CVE-2018-7738
Update to version 2.32-rc1.