Bug 1660751 (CVE-2018-20126) - CVE-2018-20126 QEMU: pvrdma: memory leakage when creating cq/qp
Summary: CVE-2018-20126 QEMU: pvrdma: memory leakage when creating cq/qp
Alias: CVE-2018-20126
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Whiteboard: impact=low,public=20181211,reported=2...
Depends On: 1660752
Blocks: 1649132
TreeView+ depends on / blocked
Reported: 2018-12-19 06:59 UTC by Prasad J Pandit
Modified: 2019-06-08 23:46 UTC (History)
0 users

Fixed In Version:
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Last Closed: 2018-12-20 05:19:27 UTC

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Description Prasad J Pandit 2018-12-19 06:59:40 UTC
A memory leakage issue was found in QEMU's implementation of
VMWare's paravirtual RDMA device. It could occur while creating CQ/QP
ring objects in create_cq/qp() routines, as it did not free ring objects'
memory in case of an error.

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

Upstream patch:
  -> https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02824.html

  -> https://www.openwall.com/lists/oss-security/2018/12/19/4

Comment 1 Prasad J Pandit 2018-12-19 06:59:43 UTC

Name: Li Qiang

Comment 2 Prasad J Pandit 2018-12-19 06:59:54 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1660752]

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