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Bug 1444781 - (CVE-2017-8086) CVE-2017-8086 Qemu: 9pfs: host memory leakage via v9pfs_list_xattr
CVE-2017-8086 Qemu: 9pfs: host memory leakage via v9pfs_list_xattr
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=20170410,reported=2...
: Security
Depends On: 1444782 1444783
Blocks: 1440146
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Reported: 2017-04-24 05:43 EDT by Prasad J Pandit
Modified: 2018-07-18 11:19 EDT (History)
38 users (show)

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Description Prasad J Pandit 2017-04-24 05:43:43 EDT 
Quick Emulator(Qemu) built with the virtio-9p back-end support is vulnerable
to a memory leakage issue. It could occur while querying file system extended
attributes via 9pfs_list_xattr() routine.

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

Upstream patch:
---------------
    -> http://git.qemu.org/?p=qemu.git;a=commit;h=4ffcdef4277a91af15a3c09f7d16af072c29f3f2

Reference:
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  -> http://www.openwall.com/lists/oss-security/2017/04/25/5
Comment 1 Prasad J Pandit 2017-04-24 05:44:21 EDT 
Acknowledgments:

Name: Li Qiang (Qihoo 360 Gear Team)
Comment 2 Prasad J Pandit 2017-04-24 05:45:47 EDT 
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1444783]
Comment 3 Prasad J Pandit 2017-04-24 05:46:14 EDT 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1444782]
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