#VU14185 Null pointer dereference in Linux kernel - CVE-2018-14609
Published: August 3, 2018
Vulnerability identifier: #VU14185
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:P/U:Clear
CVE-ID: CVE-2018-14609
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists in the __del_reloc_root() function, as defined in the fs/btrfs/relocation.c source code file of the affected software due to an invalid pointer dereference condition that could occur when a corrupted Btrfs filesystem image is mounted. A local attacker can mount a Btrfs image that submits malicious input, trigger an invalid pointer dereference condition and cause the service to crash.
Remediation
Install update from vendor's website.