CVE & CISA-KEV Catalog

CVE-2021-3582

MEDIUM

6.5

CVSS v3

Description

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.

CWE-119Buffer Overflow

How to fix

Remediation Available

qemuDebian

Fixed in:1:5.2+dfsg-11CVE-2021-3582

Fixed in:1:5.2+dfsg-11CVE-2021-3582

Fixed in:1:5.2+dfsg-11CVE-2021-3582

Fixed in:1:5.2+dfsg-11CVE-2021-3582

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 RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Exploit1

bugzilla.redhat.com

Third-Party Advisory3

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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.