Is CVE-2020-14364 in the CISA KEV catalog?

No. CVE-2020-14364 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-14364?

CVE-2020-14364 has a CVSS v3 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2020-14364?

CVE-2020-14364 has an EPSS score of 5.45% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-14364?

Upgrade qemu on debian 11 to 1:5.1+dfsg-4 or later. Fixes are available for 21 affected products.

CVE & CISA-KEV Catalog

CVE-2020-14364

MEDIUMEPSS 92th pctl

5.0

CVSS v3

NVD

Description

An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.

CWE-125Out-of-bounds Read CWE-787Out-of-bounds Write

How to fix

Remediation Available

qemuDebian

Fixed in:1:5.1+dfsg-4CVE-2020-14364

qemuUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm1USN-4467-2

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

Fixed in:1:2.11+dfsg-1ubuntu7.32USN-4511-1

Fixed in:1:4.2-3ubuntu6.6USN-4511-1

qemu-block-extraUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

qemu-guest-agentUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

qemu-kvmUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

qemu-systemUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm1USN-4467-2

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

Fixed in:1:2.11+dfsg-1ubuntu7.32USN-4511-1

Fixed in:1:4.2-3ubuntu6.6USN-4511-1

qemu-system-aarch64Ubuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm1USN-4467-2

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

qemu-system-armUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm1USN-4467-2

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

Fixed in:1:2.11+dfsg-1ubuntu7.32USN-4511-1

Fixed in:1:4.2-3ubuntu6.6USN-4511-1

qemu-system-commonUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

qemu-system-mipsUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm1USN-4467-2

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

Fixed in:1:2.11+dfsg-1ubuntu7.32USN-4511-1

Fixed in:1:4.2-3ubuntu6.6USN-4511-1

qemu-system-miscUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm1USN-4467-2

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

qemu-system-ppcUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm1USN-4467-2

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

Fixed in:1:2.11+dfsg-1ubuntu7.32USN-4511-1

Fixed in:1:4.2-3ubuntu6.6USN-4511-1

qemu-system-s390xUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

Fixed in:1:2.11+dfsg-1ubuntu7.32USN-4511-1

Fixed in:1:4.2-3ubuntu6.6USN-4511-1

qemu-system-sparcUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm1USN-4467-2

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

Fixed in:1:2.11+dfsg-1ubuntu7.32USN-4511-1

Fixed in:1:4.2-3ubuntu6.6USN-4511-1

qemu-system-x86Ubuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm1USN-4467-2

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

Fixed in:1:2.11+dfsg-1ubuntu7.32USN-4511-1

Fixed in:1:4.2-3ubuntu6.6USN-4511-1

qemu-system-x86-microvmUbuntu

Fixed in:1:4.2-3ubuntu6.6USN-4511-1

qemu-system-x86-xenUbuntu

Fixed in:1:4.2-3ubuntu6.6USN-4511-1

qemu-userUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

qemu-user-binfmtUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

qemu-user-staticUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

qemu-utilsUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.46USN-4511-1

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 ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

5.45%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Third-Party Advisory9

Other references2

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix

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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.