Bug 1499110 (CVE-2017-15038) - CVE-2017-15038 Qemu: 9p: virtfs: information disclosure when reading extended attributes
Summary: CVE-2017-15038 Qemu: 9p: virtfs: information disclosure when reading extended...
Status: CLOSED NOTABUG
Alias: CVE-2017-15038
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=low,public=20171004,reported=2...
Keywords: Security
Depends On: 1499111
Blocks: 1488388
TreeView+ depends on / blocked
 
Reported: 2017-10-06 05:26 UTC by Prasad J Pandit
Modified: 2019-06-08 22:23 UTC (History)
38 users (show)

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Clone Of:
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Last Closed: 2019-06-08 03:26:38 UTC


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Description Prasad J Pandit 2017-10-06 05:26:11 UTC
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:
----------
  -> http://www.openwall.com/lists/oss-security/2017/10/06/1

Comment 1 Prasad J Pandit 2017-10-06 05:26:45 UTC
Acknowledgments:

Name: Tuomas Tynkkynen

Comment 2 Prasad J Pandit 2017-10-06 05:27:42 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1499111]

Comment 3 Fedora Update System 2017-11-07 22:12:36 UTC
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 2017-11-11 02:58:01 UTC
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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