CVE-2021-3607 Information

Description

An integer overflow was found in the QEMU implementation of VMWare’s paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a \PVRDMA_REG_DSRHIGH\ write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1973349 https://lists.gnu.org/archive/html/qemu-devel/2021-06/msg07925.html https://security.netapp.com/advisory/ntap-20220318-0002/

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.0