CVE & CISA-KEV Catalog

CVE-2021-3608

MEDIUM
6.0
CVSS v3
NVD

Description

A flaw 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 and may result in a crash of QEMU or cause undefined behavior due to the access of an uninitialized pointer. The highest threat from this vulnerability is to system availability.

CWE-824

How to fix

Remediation Available
qemuDebian
Fixed in:1:5.2+dfsg-11CVE-2021-3608
Fixed in:1:5.2+dfsg-11CVE-2021-3608
Fixed in:1:5.2+dfsg-11CVE-2021-3608
Fixed in:1:5.2+dfsg-11CVE-2021-3608
qemuUbuntu
Fixed in:1:2.11+dfsg-1ubuntu7.37USN-5010-1
Fixed in:1:4.2-3ubuntu6.17USN-5010-1
qemu-systemUbuntu
Fixed in:1:2.11+dfsg-1ubuntu7.37USN-5010-1
Fixed in:1:4.2-3ubuntu6.17USN-5010-1
qemu-system-armUbuntu
Fixed in:1:2.11+dfsg-1ubuntu7.37USN-5010-1
Fixed in:1:4.2-3ubuntu6.17USN-5010-1
qemu-system-mipsUbuntu
Fixed in:1:2.11+dfsg-1ubuntu7.37USN-5010-1
Fixed in:1:4.2-3ubuntu6.17USN-5010-1
qemu-system-miscUbuntu
Fixed in:1:2.11+dfsg-1ubuntu7.37USN-5010-1
Fixed in:1:4.2-3ubuntu6.17USN-5010-1
qemu-system-ppcUbuntu
Fixed in:1:2.11+dfsg-1ubuntu7.37USN-5010-1
Fixed in:1:4.2-3ubuntu6.17USN-5010-1
qemu-system-s390xUbuntu
Fixed in:1:2.11+dfsg-1ubuntu7.37USN-5010-1
Fixed in:1:4.2-3ubuntu6.17USN-5010-1
qemu-system-sparcUbuntu
Fixed in:1:2.11+dfsg-1ubuntu7.37USN-5010-1
Fixed in:1:4.2-3ubuntu6.17USN-5010-1
qemu-system-x86Ubuntu
Fixed in:1:2.11+dfsg-1ubuntu7.37USN-5010-1
Fixed in:1:4.2-3ubuntu6.17USN-5010-1
qemu-system-x86-microvmUbuntu
Fixed in:1:4.2-3ubuntu6.17USN-5010-1
qemu-system-x86-xenUbuntu
Fixed in:1:4.2-3ubuntu6.17USN-5010-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.36%probability of exploitation in 30 days
28thpercentile

Low risk: more likely to be exploited than 28% of all known CVEs.

References

Related Vulnerabilities

Other CWE-824 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2018-9948Medium6.564%--
CVE-2018-11803High7.558%-Fix
CVE-2022-21971High7.854%KEVFix
CVE-2010-1818High9.343%--
CVE-2015-1770High8.835%KEV-
CVE-2017-12561Critical9.831%--
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Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.