CVE & CISA-KEV Catalog

CVE-2021-3611

MEDIUM
6.5
CVSS v3
NVD

Description

A stack overflow vulnerability was found in the Intel HD Audio device (intel-hda) of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. This flaw affects QEMU versions prior to 7.0.0.

How to fix

Remediation Available
qemuDebian
Fixed in:1:7.0+dfsg-1CVE-2021-3611
Fixed in:1:7.0+dfsg-1CVE-2021-3611
Fixed in:1:7.0+dfsg-1CVE-2021-3611
qemuUbuntu
Fixed in:1:4.2-3ubuntu6.28USN-6567-1
Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1
Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1
Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1
qemu-systemUbuntu
Fixed in:1:4.2-3ubuntu6.28USN-6567-1
Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1
Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1
qemu-system-armUbuntu
Fixed in:1:4.2-3ubuntu6.28USN-6567-1
Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1
Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1
Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1
qemu-system-mipsUbuntu
Fixed in:1:4.2-3ubuntu6.28USN-6567-1
Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1
Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1
Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1
qemu-system-miscUbuntu
Fixed in:1:4.2-3ubuntu6.28USN-6567-1
Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1
Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1
Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1
qemu-system-ppcUbuntu
Fixed in:1:4.2-3ubuntu6.28USN-6567-1
Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1
Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1
Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1
qemu-system-s390xUbuntu
Fixed in:1:4.2-3ubuntu6.28USN-6567-1
Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1
Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1
Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1
qemu-system-sparcUbuntu
Fixed in:1:4.2-3ubuntu6.28USN-6567-1
Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1
Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1
Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1
qemu-system-x86Ubuntu
Fixed in:1:4.2-3ubuntu6.28USN-6567-1
Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1
Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1
Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1
qemu-system-x86-microvmUbuntu
Fixed in:1:4.2-3ubuntu6.28USN-6567-1
Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1
qemu-system-x86-xenUbuntu
Fixed in:1:4.2-3ubuntu6.28USN-6567-1
Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1
Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1
Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1
qemu-system-xenUbuntu
Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1
Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

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

0.49%probability of exploitation in 30 days
39thpercentile

Low risk: more likely to be exploited than 39% of all known CVEs.

References

Related Vulnerabilities

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

CVESeverityCVSSEPSSExploitedFix
CVE-2023-4966Critical9.4100%KEV + RansomFix
CVE-2017-11882High7.8100%KEV + Ransom-
CVE-2020-0796Critical10.0100%KEV + Ransom-
CVE-2008-4250Critical9.899%KEV-
CVE-2017-15944Critical9.898%KEVFix
CVE-2015-0014High10.097%--
Embed a live status badge for CVE-2021-3611
CVE-2021-3611 severity badge

Markdown

[![CVE-2021-3611](https://tridentstack.com/cve/badge/CVE-2021-3611.svg)](https://tridentstack.com/cve/CVE-2021-3611)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-3611"><img src="https://tridentstack.com/cve/badge/CVE-2021-3611.svg" alt="CVE-2021-3611"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.