Memory corruption in Linux kernel - CVE-2018-12233
Published: June 13, 2018 / Updated: June 14, 2018
Vulnerability identifier: #VU13338
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-2018-12233
CWE-ID: CWE-119
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 ea_get function due to boundary error when calling setxattr twice with two different extended attribute names on the same file, as defined in the fs/jfs/xattr.c source code file. A local attacker can create a file or execute a program that submits malicious input, trigger a slab-out-of-bounds condition and cause the system crash or execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Linux kernel
SUSE Linux
Opensuse
SUSE Linux
Opensuse
How to mitigate CVE-2018-12233
Cybersecurity Help is currently unaware of any solutions addressing the vulnerability.