Vulnerability CVE-2018-1118


Published: 2018-05-10

Description:
Linux kernel vhost since version 4.8 does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file.

Type:

CWE-200

(Information Exposure)

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Redhat -> Virtualization host 
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux workstation 
Linux -> Linux kernel 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
https://access.redhat.com/errata/RHSA-2018:2948
https://access.redhat.com/errata/RHSA-2018:3083
https://access.redhat.com/errata/RHSA-2018:3096
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1118
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
https://usn.ubuntu.com/3762-1/
https://usn.ubuntu.com/3762-2/

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