Bug 1660314 (CVE-2018-20191) - CVE-2018-20191 QEMU: pvrdma: uar_read leads to NULL dereference
Summary: CVE-2018-20191 QEMU: pvrdma: uar_read leads to NULL dereference
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-20191
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:
Depends On: 1660315
Blocks: 1649132
TreeView+ depends on / blocked
 
Reported: 2018-12-18 06:54 UTC by Prasad J Pandit
Modified: 2019-09-29 15:04 UTC (History)
0 users

Fixed In Version:
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Last Closed: 2018-12-20 05:17:35 UTC


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Description Prasad J Pandit 2018-12-18 06:54:15 UTC
A Null pointer dereference issue was found in QEMU's implementation of
VMWare's paravirtual RDMA device. It could occur while performing
UAR read operation, as it did not define a routine to handle it.

A guest user/process could use this flaw to crash QEMU process on host,
resulting in DoS.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg03066.html

Reference:
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  -> https://www.openwall.com/lists/oss-security/2018/12/18/1

Comment 1 Prasad J Pandit 2018-12-18 06:54:18 UTC
Acknowledgments:

Name: Li Qiang

Comment 2 Prasad J Pandit 2018-12-18 06:54:31 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1660315]


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