Improper initialization in Linux kernel - CVE-2018-1118
Published: May 16, 2018
Vulnerability identifier: #VU12747
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-1118
CWE-ID: CWE-665
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.
The weakness exists in the vhost/vhost.c:vhost_new_msg() function due to improper initialization of memory in messages that are passed between virtual guests and the host operating system. A local attacker can read from the /dev/vhost-net device file and read sensitive kernel memory information.
The weakness exists in the vhost/vhost.c:vhost_new_msg() function due to improper initialization of memory in messages that are passed between virtual guests and the host operating system. A local attacker can read from the /dev/vhost-net device file and read sensitive kernel memory information.
Affected software
Linux kernel
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
kernel-alt (Red Hat package)
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
kernel-alt (Red Hat package)
How to mitigate CVE-2018-1118
Cybersecurity is currently unaware of any solutions addressing the vulnerability.
kernel-alt (Red Hat package) - update to 4.14.0-115.el7a