Stack-based out-of-bounds write in Linux kernel - CVE-2018-12931
Published: August 23, 2018
Vulnerability identifier: #VU14507
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-12931
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists in the ntfs_attr_find() function in the ntfs.ko filesystem driver due to stack-based out-of-bounds write. A local attacker can mount a specially crafted NTFS filesystem that submits malicious input, trigger memory corruption and cause the affected software to terminate abnormally or execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Linux kernel
MRG Realtime
kernel-rt (Red Hat package)
MRG Realtime
kernel-rt (Red Hat package)
How to mitigate CVE-2018-12931
Cybersecurity Help is currently unaware of any solutions addressing the vulnerability.
kernel-rt (Red Hat package) - update to 3.10.0-693.46.1.rt56.639.el6rt