Cyber Resilience

CVE-2021-3607

Medium

Published: 24 February 2022

Published
24 February 2022
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
EPSS Score 0.0017 38.5th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-3607 is a medium-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Qemu Qemu. Its CVSS base score is 6.0 (Medium).

Operationally, ranked at the 38.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

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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.

CWE(s)
CWE-190

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

qemu
qemu
≤ 6.1.0
debian
debian linux
10.0
fedoraproject
fedora
34

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References