Bug 1437871 (CVE-2017-7377) - CVE-2017-7377 Qemu: 9pfs: host memory leakage via v9fs_create
Summary: CVE-2017-7377 Qemu: 9pfs: host memory leakage via v9fs_create
Alias: CVE-2017-7377
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1437872 1437873
Blocks: 1434851
TreeView+ depends on / blocked
Reported: 2017-03-31 11:49 UTC by Prasad Pandit
Modified: 2021-02-17 02:23 UTC (History)
37 users (show)

Fixed In Version:
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Clone Of:
Last Closed: 2019-06-08 03:09:45 UTC

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Description Prasad Pandit 2017-03-31 11:49:09 UTC
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

  -> http://www.openwall.com/lists/oss-security/2017/04/03/2

Comment 1 Prasad Pandit 2017-03-31 11:49:47 UTC

Name: Li Qiang (360.cn Inc.)

Comment 2 Prasad Pandit 2017-03-31 11:51:14 UTC
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1437873]

Comment 3 Prasad Pandit 2017-03-31 11:51:36 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1437872]

Comment 4 Fedora Update System 2017-07-25 21:24:26 UTC
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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