High severity · published Jul 20, 2022
CVE-2022-33967
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…
7.8
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UB
U-boot · Denx
2020.10; 2020.10; 2020.10; 2020.10; 2021.01; 2021.01; +22 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-33967
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-33967
Third Party Advisory
https://jvn.jp/en/vu/JVNVU97846460/index.html
Exploit
https://lists.denx.de/pipermail/u-boot/2022-June/487467.html
Patch
https://source.denx.de/u-boot/u-boot/-/commit/7f7fb9937c6cb49dd35153bd6708872b390b0a44
Product
https://www.denx.de/project/u-boot/
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/05/msg00001.html
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