Bug 1483534 (CVE-2017-12809) - CVE-2017-12809 Qemu: ide: flushing of empty CDROM drives leads to NULL dereference
Summary: CVE-2017-12809 Qemu: ide: flushing of empty CDROM drives leads to NULL derefe...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2017-12809
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: 1483536
Blocks: 1455462
TreeView+ depends on / blocked
 
Reported: 2017-08-21 11:15 UTC by Prasad Pandit
Modified: 2021-02-17 01:42 UTC (History)
38 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-06-08 03:21:24 UTC
Embargoed:

Attachments (Terms of Use)

Description Prasad Pandit 2017-08-21 11:15:24 UTC 
Quick emulator built with the IDE disk and CD/DVD-ROM Emulator support is
vulnerable to a null pointer dereference issue. It could occur while
flushing an empty CDROM device drive.

A privileged user inside guest could use this flaw to crash the Qemu process
resulting in DoS.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg01850.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2017/08/21/2
Comment 1 Prasad Pandit 2017-08-21 11:16:05 UTC 
Acknowledgments:

Name: Ryan Salsamendi (Palo Alto Networks PSIRT)
Comment 2 Prasad Pandit 2017-08-21 11:17:37 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1483536]
Comment 3 Fedora Update System 2017-11-07 22:14:06 UTC 
qemu-2.9.1-2.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.
Note You need to log in before you can comment on or make changes to this bug.