CVE-2018-16741
mgetty: command injection in faxrunq
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · September 11, 2018
Updated · November 22, 2025
Description
A command injection flaw was discovered in mgetty in the faxrunq script used to send queued faxes. The shell script faxrunq does not properly escape the arguments passed to faxsend before evaluating the command allowing a user, who has permissions to queue faxes in the system, to execute arbitrary command with elevated privileges.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Allow only trusted users to run the faxq-helper binary, by correctly setting the /etc/mgetty+sendfax/fax.allow configuration file.
CVSS / CWE
CVSS 3.0 · 6.7CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')