Medium severity · published May 10, 2018
CVE-2018-1118
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…
5.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
4.8 before 4.18 · source: NVD
DL
Debian Linux · Debian
8.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04 · source: NVD
VH
Virtualization Host · Redhat
4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1118
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-1118
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2948
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3083
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3096
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1118
Mailing List
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
Third Party Advisory
https://usn.ubuntu.com/3762-1/
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