Bug 1389538 (CVE-2016-9101) - CVE-2016-9101 Qemu: net: eepro100 memory leakage at device unplug
Summary: CVE-2016-9101 Qemu: net: eepro100 memory leakage at device unplug
Alias: CVE-2016-9101
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1389539
Blocks: 1389512
TreeView+ depends on / blocked
Reported: 2016-10-27 20:18 UTC by Prasad Pandit
Modified: 2021-02-17 03:06 UTC (History)
36 users (show)

Fixed In Version:
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Clone Of:
Last Closed: 2019-06-08 03:01:28 UTC

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Description Prasad Pandit 2016-10-27 20:18:22 UTC
Quick Emulator(Qemu) built with the i8255x (PRO100) NIC emulation support
is vulnerable to a memory leakage issue. It could occur while unplugging the
device, and doing so repeatedly would result in leaking host memory affecting,
other services on the host.

A privileged user inside guest could use this flaw to cause a DoS on the host
and/or potentially crash the Qemu process on the host.

Upstream patch:
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg03024.html

  -> http://www.openwall.com/lists/oss-security/2016/10/27/14

Comment 1 Prasad Pandit 2016-10-27 20:18:55 UTC

Name: Li Qiang (360.cn Inc.)

Comment 2 Prasad Pandit 2016-10-27 20:19:56 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1389539]

Comment 3 Andrej Nemec 2016-10-31 14:41:59 UTC
CVE assignment:


Comment 4 Cole Robinson 2017-01-16 18:25:49 UTC
Not the referenced qemu-devel patch, but I think this was the fix:

commit 2634ab7fe29b3f75d0865b719caf8f310d634aae
Author: Li Qiang <liqiang6-s>
Date:   Sat Oct 8 05:07:25 2016 -0700

    net: eepro100: fix memory leak in device uninit

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