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Bug 1437871 - (CVE-2017-7377) CVE-2017-7377 Qemu: 9pfs: host memory leakage via v9fs_create
CVE-2017-7377 Qemu: 9pfs: host memory leakage via v9fs_create
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=20170328,reported=2...
: Security
Depends On: 1437872 1437873
Blocks: 1434851
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Reported: 2017-03-31 07:49 EDT by Prasad J Pandit
Modified: 2018-07-18 11:18 EDT (History)
37 users (show)

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Description Prasad J Pandit 2017-03-31 07:49:09 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 operation via
v9fs_create/v9fs_lcreate 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/2017-03/msg05449.html

Reference:
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  -> http://www.openwall.com/lists/oss-security/2017/04/03/2
Comment 1 Prasad J Pandit 2017-03-31 07:49:47 EDT 
Acknowledgments:

Name: Li Qiang (360.cn Inc.)
Comment 2 Prasad J Pandit 2017-03-31 07:51:14 EDT 
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1437873]
Comment 3 Prasad J Pandit 2017-03-31 07:51:36 EDT 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1437872]
Comment 4 Fedora Update System 2017-07-25 17:24:26 EDT 
qemu-2.7.1-7.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.
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