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CVE-2021-3582

Date: March 25, 2022

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.

Language: C

Severity Score

Related Resources (9)

https://bugzilla.redhat.com/show_bug.cgi?id=1966266
https://security.gentoo.org/glsa/202208-27
https://nvd.nist.gov/vuln/detail/CVE-2021-3582
https://security.netapp.com/advisory/ntap-20220429-0003/
https://security-tracker.debian.org/tracker/CVE-2021-3582
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3582
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
https://lists.nongnu.org/archive/html/qemu-devel/2021-06/msg04148.html
https://www.mend.io/vulnerability-database/CVE-2021-3582

Severity Score

Weakness Type (CWE)

Buffer Errors

CWE-119

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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