#VU18539 NULL pointer dereference in Linux kernel - CVE-2018-7191 

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Main Vulnerability Database Vulnerabilities #VU18539

#VU18539 NULL pointer dereference in Linux kernel - CVE-2018-7191

Published: May 21, 2019


Vulnerability identifier: #VU18539
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-7191
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows local users to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when processing requests to ioctl(TUNSETIFF). A local user can cause a denial of service  via a malicious ioctl(TUNSETIFF) call with a dev name containing a / character.


Remediation

Install update from vendor's website.

External links