CVE-2022-33967

Public Exploit

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.40%
Vendor Advisory denx.de Vendor Advisory denx.de
Affected: DENX Software Engineering U-Boot
Published at:
Updated at:

References

Link Tags
https://www.denx.de/project/u-boot/ product
https://lists.denx.de/pipermail/u-boot/2022-June/487467.html mailing list exploit vendor advisory
https://source.denx.de/u-boot/u-boot/-/commit/7f7fb9937c6cb49dd35153bd6708872b390b0a44 third party advisory patch vendor advisory
https://jvn.jp/en/vu/JVNVU97846460/index.html third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-33967?
CVE-2022-33967 has been scored as a high severity vulnerability.
How to fix CVE-2022-33967?
To fix CVE-2022-33967, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-33967 being actively exploited in the wild?
It is possible that CVE-2022-33967 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-33967?
CVE-2022-33967 affects DENX Software Engineering U-Boot.
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