Bug 1577408 (CVE-2018-10940) - CVE-2018-10940 kernel: incorrect memory bounds check in drivers/cdrom/cdrom.c
Summary: CVE-2018-10940 kernel: incorrect memory bounds check in drivers/cdrom/cdrom.c
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-10940
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: 1577409 1578206 1578207 1578208 1578209 1578210 1578211 1578604
Blocks: 1577410
TreeView+ depends on / blocked
 
Reported: 2018-05-11 22:20 UTC by Laura Pardo
Modified: 2021-11-15 04:23 UTC (History)
42 users (show)

Fixed In Version: kernel 4.16.6
Clone Of:
Environment:
Last Closed: 2019-06-10 10:22:44 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 09:01:42 UTC
Red Hat Product Errata RHSA-2018:3083 0 None None None 2018-10-30 07:34:02 UTC
Red Hat Product Errata RHSA-2018:3096 0 None None None 2018-10-30 07:40:13 UTC

Description Laura Pardo 2018-05-11 22:20:36 UTC 
The cdrom_ioctl_media_changed function in drivers/cdrom/cdrom.c in the Linux kernel before 4.16.6 allows local attackers to use a incorrect bounds check in the CDROM driver CDROM_MEDIA_CHANGED ioctl to read out kernel memory.


References:
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.6
https://github.com/torvalds/linux/commit/9de4ee40547fd315d4a0ed1dd15a2fa3559ad707
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9de4ee40547fd315d4a0ed1dd15a2fa3559ad707
Comment 4 Wade Mealing 2018-05-15 03:40:01 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1578210]
Comment 7 Justin M. Forbes 2018-05-15 14:47:42 UTC 
This was fixed for Fedora with the 4.16.6 stable update.
Comment 10 errata-xmlrpc 2018-10-30 07:33:42 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 07:39:55 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 09:01:23 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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