CVE-2021-3582

Medium

Description

A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. The issue occurs while handling a "PVRDMA_CMD_CREATE_MR" command due to improper memory remapping (mremap). This flaw allows a malicious guest to crash the QEMU process on the host. The highest threat from this vulnerability is to system availability.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Qemu

PublishedMar 25, 2022

First seenMar 25, 2022

Weakness typeCWE-119Memory buffer bounds error

How to fix

Update

qemu qemu2.17.2 or later

Vendor advisories

security.gentoo.org/glsa/202208-27

Affected products

Product	Affected versions	Fixed in
qemu qemu	v < 2.17.2	2.17.2
debian debian_linux	10.0	—

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