Medium severity · published Mar 25, 2022
CVE-2021-3582
A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device
6.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
QE
Qemu · Qemu
before 2.17.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3582
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3582
Exploit
https://bugzilla.redhat.com/show_bug.cgi?id=1966266
Mailing List
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
Third Party Advisory
https://security.gentoo.org/glsa/202208-27
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220429-0003/
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