Bug 1361427 (CVE-2016-6490) - CVE-2016-6490 Qemu: virtio: infinite loop in virtqueue_pop
Summary: CVE-2016-6490 Qemu: virtio: infinite loop in virtqueue_pop
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2016-6490
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: 1361428
Blocks: 1360680
TreeView+ depends on / blocked
 
Reported: 2016-07-29 05:27 UTC by Prasad J Pandit
Modified: 2021-02-17 03:30 UTC (History)
35 users (show)

Fixed In Version:
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Last Closed: 2019-06-08 02:57:01 UTC


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Description Prasad J Pandit 2016-07-29 05:27:55 UTC
Quick emulator(Qemu) built with the virtio framework is vulnerable to an 
infinite loop issue. It could occur if the guest was to set the I/O descriptor 
buffer length to be zero. A privileged user inside guest could use this flaw 
to potentially crash the Qemu instance on the host resulting in DoS.

Upstream fix:
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   -> https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg06246.html

Reference:
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   -> http://www.openwall.com/lists/oss-security/2016/07/28/4

Comment 1 Prasad J Pandit 2016-07-29 05:28:24 UTC
Acknowledgments:

Name: Li Qiang (360.cn Inc.)

Comment 2 Prasad J Pandit 2016-07-29 05:29:55 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1361428]


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