Bug 1660747 (CVE-2018-20125) - CVE-2018-20125 QEMU: pvrdma: null dereference or excessive memory allocation when creating QP/CQ
Summary: CVE-2018-20125 QEMU: pvrdma: null dereference or excessive memory allocation ...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-20125
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=20181211,reported=2...
Depends On: 1660748
Blocks: 1649132
TreeView+ depends on / blocked
 
Reported: 2018-12-19 06:48 UTC by Prasad J Pandit
Modified: 2019-06-08 23:46 UTC (History)
0 users

Fixed In Version:
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Environment:
Last Closed: 2018-12-20 05:19:01 UTC


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Description Prasad J Pandit 2018-12-19 06:48:15 UTC
A Null pointer dereference issue was found in QEMU's implementation of
VMWare's paravirtual RDMA device. It could occur while creating CQ/QP
ring objects in pvrdma_ring_init() routine.

A guest user/process could use this flaw to crash QEMU process or
allocate excessive memory on host resulting in DoS.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02823.html

Reference:
----------
  -> https://www.openwall.com/lists/oss-security/2018/12/19/3

Comment 1 Prasad J Pandit 2018-12-19 06:48:18 UTC
Acknowledgments:

Name: LI Qiang

Comment 2 Prasad J Pandit 2018-12-19 06:48:34 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1660748]


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