VULNERABILITY INTELLIGENCE

CVE-2021-3607

CVSS score6 MEDIUM
EPSS probability0.30%
CISA KEVNot currently listed
Published2022-02-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

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.

Weakness classification

  • secalert@redhat.com: CWE-190
  • nvd@nist.gov: CWE-190

Primary references