Bug 1573699 - (CVE-2018-1118) CVE-2018-1118 kernel: vhost: Information disclosure in vhost/vhost.c:vhost_new_msg()
CVE-2018-1118 kernel: vhost: Information disclosure in vhost/vhost.c:vhost_ne...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
: ---
: ---
Assigned To: Red Hat Product Security
impact=low,public=20180423,reported=2...
: Security
Depends On: 1573705 1573706 1576186 1576187 1576811 1573707
Blocks: 1572782
  Show dependency treegraph
 
Reported: 2018-05-02 01:00 EDT by Sam Fowler
Modified: 2018-05-11 02:42 EDT (History)
46 users (show)

See Also:
Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
The Linux kernel 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.
Story Points: ---
Clone Of:
Environment:
Last Closed:
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)

  None (edit)
Description Sam Fowler 2018-05-02 01:00:25 EDT
The Linux kernel 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.

References:

https://lkml.org/lkml/2018/4/27/833

https://marc.info/?t=152484394400005&r=1&w=2 (and the next pages)
Comment 5 Wade Mealing 2018-05-09 01:20:36 EDT
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1576187]

Note You need to log in before you can comment on or make changes to this bug.