Bug 1573699 (CVE-2018-1118) - CVE-2018-1118 kernel: vhost: Information disclosure in vhost/vhost.c:vhost_new_msg()
Summary: CVE-2018-1118 kernel: vhost: Information disclosure in vhost/vhost.c:vhost_ne...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-1118
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1573705 1573706 1573707 1576186 1576187 1576811
Blocks: 1572782
TreeView+ depends on / blocked
 
Reported: 2018-05-02 05:00 UTC by Sam Fowler
Modified: 2023-06-19 08:21 UTC (History)
43 users (show)

Fixed In Version: Kernel 6.4-rc6
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.
Clone Of:
Environment:
Last Closed: 2019-06-10 10:21:01 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2948 0 None None None 2018-10-30 09:01:06 UTC
Red Hat Product Errata RHSA-2018:3083 0 None None None 2018-10-30 07:33:27 UTC
Red Hat Product Errata RHSA-2018:3096 0 None None None 2018-10-30 07:39:37 UTC

Description Sam Fowler 2018-05-02 05:00:25 UTC 
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 05:20:36 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1576187]
Comment 9 Justin M. Forbes 2018-07-16 14:24:15 UTC 
This was fixed for Fedora with the 4.17 rebases.
Comment 10 errata-xmlrpc 2018-10-30 07:33:09 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3083 https://access.redhat.com/errata/RHSA-2018:3083
Comment 11 errata-xmlrpc 2018-10-30 07:39:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3096 https://access.redhat.com/errata/RHSA-2018:3096
Comment 12 errata-xmlrpc 2018-10-30 09:00:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2948 https://access.redhat.com/errata/RHSA-2018:2948
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