Bug 1658963 (CVE-2018-20123) - CVE-2018-20123 QEMU: pvrdma: memory leakage in device hotplug
Summary: CVE-2018-20123 QEMU: pvrdma: memory leakage in device hotplug
Status: CLOSED NOTABUG
Alias: CVE-2018-20123
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=20181212,reported=2...
Keywords: Security
Depends On: 1658964
Blocks: 1649132
TreeView+ depends on / blocked
 
Reported: 2018-12-13 09:16 UTC by Prasad J Pandit
Modified: 2019-06-08 23:46 UTC (History)
0 users

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Clone Of:
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Last Closed: 2018-12-20 05:07:43 UTC


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Description Prasad J Pandit 2018-12-13 09:16:34 UTC
A memory leakage issue was found in the way QEMU initialised its
VMWare's paravirtual RDMA device. In pvrdma_realize() routine, if
an error occurred, it did not release memory resources allocated
to various objects.

A guest user/process could use this flaw to leak host memory,
resulting in DoS for host.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02817.html

Reference:
----------
  -> https://www.openwall.com/lists/oss-security/2018/12/13/4

Comment 1 Prasad J Pandit 2018-12-13 09:16:37 UTC
Acknowledgments:

Name: Li Qiang

Comment 2 Prasad J Pandit 2018-12-13 09:16:56 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1658964]


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