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Bug 1443401 - (CVE-2017-7471) CVE-2017-7471 Qemu: 9p: virtfs allows guest to change filesystem attributes on host
CVE-2017-7471 Qemu: 9p: virtfs allows guest to change filesystem attributes o...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
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Assigned To: Red Hat Product Security
impact=important,public=20170418,repo...
: Security
Depends On: 1525813 1443403
Blocks: 1442934
  Show dependency tree / graph
 
Reported: 2017-04-19 03:59 EDT by Prasad J Pandit
Modified: 2018-07-18 11:19 EDT (History)
37 users (show)

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Description Prasad J Pandit 2017-04-19 03:59:46 EDT 
Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9
File System(9pfs) support, is vulnerable to an improper access control issue.
It could occur while accessing files on a shared host directory.

A privileged user inside guest could use this flaw to access host file system
beyond the shared folder and potentially escalating their privileges on a host.

Upstream patches:
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  -> http://git.qemu-project.org/?p=qemu.git;a=commitdiff;h=9c6b899f7a46893ab3b671e341a2234e9c0c060e

Reference:
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  -> http://www.openwall.com/lists/oss-security/2017/04/19/2
Comment 1 Prasad J Pandit 2017-04-19 04:00:42 EDT 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1443403]
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