CVE-2022-33967: Buffer Overflow

Published Jul 20, 2022
·
Updated

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.

Affected Software

35 affected componentsFixes available
ubuntu/u-boot<2020.10+dfsg-1ubuntu0~18.04.3
2020.10+dfsg-1ubuntu0~18.04.3
ubuntu/u-boot<2021.01+dfsg-3ubuntu0~20.04.5
2021.01+dfsg-3ubuntu0~20.04.5
ubuntu/u-boot<2022.01+dfsg-2ubuntu2.3
2022.01+dfsg-2ubuntu2.3
DENX U-Boot=2020.10-rc2
DENX U-Boot=2020.10-rc3
DENX U-Boot=2020.10-rc4
DENX U-Boot=2020.10-rc5
DENX U-Boot=2021.01
DENX U-Boot=2021.01-rc1
DENX U-Boot=2021.01-rc2
DENX U-Boot=2021.01-rc3
DENX U-Boot=2021.01-rc4
DENX U-Boot=2021.01-rc5
DENX U-Boot=2021.04-rc1
DENX U-Boot=2021.04-rc2
DENX U-Boot=2022.01
DENX U-Boot=2022.01-rc1
DENX U-Boot=2022.01-rc2
DENX U-Boot=2022.01-rc3
DENX U-Boot=2022.01-rc4
DENX U-Boot=2022.04
DENX U-Boot=2022.04-rc1
DENX U-Boot=2022.04-rc2
DENX U-Boot=2022.04-rc3
DENX U-Boot=2022.04-rc4
DENX U-Boot=2022.04-rc5
DENX U-Boot=2022.07-rc1
DENX U-Boot=2022.07-rc2
DENX U-Boot=2022.07-rc3
DENX U-Boot=2022.07-rc4
DENX U-Boot=2022.07-rc5
debian/u-boot<2022.07+dfsg-1
2022.07+dfsg-1
debian/u-boot<2022.07+dfsg-1
2022.07+dfsg-1
debian/u-boot<2022.07+dfsg-1
2022.07+dfsg-1
debian/u-boot
2023.01+dfsg-2+deb12u32025.01-3+deb13u12025.01-3.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/u-boot to a version that resolves this vulnerability.

    Fixed in 2020.10+dfsg-1ubuntu0~18.04.3
  2. Upgrade

    Upgrade ubuntu/u-boot to a version that resolves this vulnerability.

    Fixed in 2021.01+dfsg-3ubuntu0~20.04.5
  3. Upgrade

    Upgrade ubuntu/u-boot to a version that resolves this vulnerability.

    Fixed in 2022.01+dfsg-2ubuntu2.3
  4. Upgrade

    Upgrade debian/u-boot to a version that resolves this vulnerability.

    Fixed in 2023.01+dfsg-2+deb12u3Fixed in 2025.01-3+deb13u1Fixed in 2025.01-3.2
  5. Upgrade

    Upgrade debian/u-boot to a version that resolves this vulnerability.

    Fixed in 2022.07+dfsg-1

Event History

Jul 20, 2022
CVE Published
via Ubuntu·12:00 AM
CVE Published
via MITRE·06:15 AM
Data Sourced
via MITRE·06:15 AM
DescriptionWeakness
Data Sourced
via NVD·07:15 AM
RemedyDescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·07:15 AM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the vulnerability ID for this squashfs filesystem issue in U-Boot?

The vulnerability ID is CVE-2022-33967.

2

What is the severity level of CVE-2022-33967?

The severity level of CVE-2022-33967 is high.

3

What is the affected software for CVE-2022-33967?

The affected software is DENX U-Boot versions from v2020.10-rc2 to v2022.07-rc5.

4

What is the impact of CVE-2022-33967?

Loading a specially crafted squashfs image may lead to a denial-of-service (DoS) condition or arbitrary code execution.

5

Where can I find more information about CVE-2022-33967?

You can find more information about CVE-2022-33967 on the JVN vulnerability database and the U-Boot mailing list.

Company

Resources

Contact

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