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CVE-2022-33967

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Date: July 20, 2022

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.

Language: C

Severity Score

Related Resources (8)

https://jvn.jp/en/vu/JVNVU97846460/index.html
https://lists.denx.de/pipermail/u-boot/2022-June/487467.html
https://source.denx.de/u-boot/u-boot/-/commit/7f7fb9937c6cb49dd35153bd6708872b390b0a44
https://nvd.nist.gov/vuln/detail/CVE-2022-33967
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-33967
https://security-tracker.debian.org/tracker/CVE-2022-33967
https://www.denx.de/project/u-boot/
https://www.mend.io/vulnerability-database/CVE-2022-33967

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Top Fix

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Upgrade Version

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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