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Bug 1499110 - (CVE-2017-15038) CVE-2017-15038 Qemu: 9p: virtfs: information disclosure when reading extended attributes
CVE-2017-15038 Qemu: 9p: virtfs: information disclosure when reading extended...
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=20171004,reported=2...
: Security
Depends On: 1499111
Blocks: 1488388
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Reported: 2017-10-06 01:26 EDT by Prasad J Pandit
Modified: 2018-07-18 11:33 EDT (History)
38 users (show)

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Description Prasad J Pandit 2017-10-06 01:26:11 EDT 
Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9
File System(9pfs) support, is vulnerable to an information disclosure issue.
It could occur while accessing extended attributes of a file due to a race
condition.

A user inside guest could use this flaw to disclose uninitialised heap
memory contents on the host.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2017-10/msg00729.html

Reference:
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  -> http://www.openwall.com/lists/oss-security/2017/10/06/1
Comment 1 Prasad J Pandit 2017-10-06 01:26:45 EDT 
Acknowledgments:

Name: Tuomas Tynkkynen
Comment 2 Prasad J Pandit 2017-10-06 01:27:42 EDT 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1499111]
Comment 3 Fedora Update System 2017-11-07 17:12:36 EST 
qemu-2.9.1-2.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.
Comment 4 Fedora Update System 2017-11-10 21:58:01 EST 
qemu-2.10.1-1.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.
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