Bug 1337505 (CVE-2016-4441) - CVE-2016-4441 Qemu: scsi: esp: OOB write while writing to 's->cmdbuf' in get_cmd
Summary: CVE-2016-4441 Qemu: scsi: esp: OOB write while writing to 's->cmdbuf' in get_cmd
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2016-4441
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1337506
Blocks: 1337125
TreeView+ depends on / blocked
 
Reported: 2016-05-19 11:06 UTC by Prasad Pandit
Modified: 2021-02-17 03:52 UTC (History)
34 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2019-06-08 02:52:06 UTC
Embargoed:

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Description Prasad Pandit 2016-05-19 11:06:02 UTC 
Quick Emulator(Qemu) built with the ESP/NCR53C9x controller emulation support
is vulnerable to an OOB write access issue. The controller uses 16-byte FIFO
buffer for command and data transfer. The OOB write occurs while writing to
this command buffer in routine get_cmd().

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/2016-05/msg03274.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2016/05/19/4
Comment 1 Prasad Pandit 2016-05-19 11:07:31 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1337506]
Comment 2 Prasad Pandit 2016-05-25 06:48:31 UTC 
Acknowledgments:

Name: Li Qiang (360.cn Inc.)
Comment 3 Fedora Update System 2016-05-29 17:47:41 UTC 
qemu-2.6.0-3.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 4 Fedora Update System 2016-05-30 21:19:14 UTC 
xen-4.6.1-10.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2016-05-31 02:51:43 UTC 
qemu-2.4.1-10.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 6 Fedora Update System 2016-06-05 02:55:52 UTC 
xen-4.5.3-6.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 7 Fedora Update System 2016-06-07 01:19:54 UTC 
qemu-2.3.1-15.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 8 Fedora Update System 2016-06-12 22:51:14 UTC 
xen-4.5.3-6.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
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