Bug 1337505 - (CVE-2016-4441) CVE-2016-4441 Qemu: scsi: esp: OOB write while writing to 's->cmdbuf' in get_cmd
CVE-2016-4441 Qemu: scsi: esp: OOB write while writing to 's->cmdbuf' in get_cmd
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20160519,repor...
: Security
Depends On: 1337506
Blocks: 1337125
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Reported: 2016-05-19 07:06 EDT by Prasad J Pandit
Modified: 2018-01-30 18:59 EST (History)
35 users (show)

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Description Prasad J Pandit 2016-05-19 07:06:02 EDT
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:
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  -> https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03274.html

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

Affects: fedora-all [bug 1337506]
Comment 2 Prasad J Pandit 2016-05-25 02:48:31 EDT
Acknowledgments:

Name: Li Qiang (360.cn Inc.)
Comment 3 Fedora Update System 2016-05-29 13:47:41 EDT
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 17:19:14 EDT
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 2016-05-30 22:51:43 EDT
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 2016-06-04 22:55:52 EDT
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 2016-06-06 21:19:54 EDT
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 18:51:14 EDT
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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