CVE & CISA-KEV Catalog

CVE-2022-33967

HIGH

7.8

CVSS v3

Description

squashfs filesystem implementation of U-Boot versions from v2020.10-rc2 to v2022.07-rc5 contains a heap-based buffer overflow vulnerability due to a defect in the metadata reading process. Loading a specially crafted squashfs image may lead to a denial-of-service (DoS) condition or arbitrary code execution.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

u-bootDebian

Fixed in:2021.01+dfsg-5+deb11u1CVE-2022-33967

Fixed in:2022.07+dfsg-1CVE-2022-33967

Fixed in:2022.07+dfsg-1CVE-2022-33967

Fixed in:2022.07+dfsg-1CVE-2022-33967

u-bootUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-amlogicUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-exynosUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-imxUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-microchipUbuntu

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-mvebuUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-omapUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-qcomUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-qemuUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-rockchipUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-rpiUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-sifiveUbuntu

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-stm32Ubuntu

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-sunxiUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-tegraUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

u-boot-toolsUbuntu

Fixed in:2020.10+dfsg-1ubuntu0~18.04.3USN-5764-1

Fixed in:2021.01+dfsg-3ubuntu0~20.04.5USN-5764-1

Fixed in:2022.01+dfsg-2ubuntu2.3USN-5764-1

Fixed in:2022.07+dfsg-1ubuntu4.2USN-5764-1

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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.52%probability of exploitation in 30 days

40thpercentile

Moderate risk: more likely to be exploited than 40% of all known CVEs.

References

Patch1

source.denx.de

Exploit1

lists.denx.de

Third-Party Advisory1

jvn.jp

Product1

denx.de

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	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 2025-11-03.