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Bug 1383285 - (CVE-2016-8577) CVE-2016-8577 Qemu: 9pfs: host memory leakage in v9fs_read
CVE-2016-8577 Qemu: 9pfs: host memory leakage in v9fs_read
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20160927,reported=2...
: Security
Depends On: 1383286 1383287
Blocks: 1382469
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Reported: 2016-10-10 07:09 EDT by Prasad J Pandit
Modified: 2018-07-18 11:02 EDT (History)
37 users (show)

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Description Prasad J Pandit 2016-10-10 07:09:58 EDT
Quick Emulator(Qemu) built with the virtio-9p back-end support is vulnerable
to a memory leakage issue. It could occur while doing a I/O read operation in
v9fs_read() routine.

A privileged user/process inside guest could use this flaw to leak host memory
resulting in Dos.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07127.html
Comment 1 Prasad J Pandit 2016-10-10 07:10:35 EDT
Acknowledgments:

Name: Li Qiang (360.cn Inc.)
Comment 2 Prasad J Pandit 2016-10-10 07:12:37 EDT
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1383287]
Comment 3 Prasad J Pandit 2016-10-10 07:12:59 EDT
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1383286]
Comment 4 Cole Robinson 2017-01-16 13:28:36 EST
commit e95c9a493a5a8d6f969e86c9f19f80ffe6587e19
Author: Li Qiang <liqiang6-s@360.cn>
Date:   Mon Oct 17 14:13:58 2016 +0200

    9pfs: fix potential host memory leak in v9fs_read

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