| Name | CVE-2022-33967 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4150-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| u-boot (PTS) | bullseye | 2021.01+dfsg-5 | vulnerable |
| bullseye (security) | 2021.01+dfsg-5+deb11u1 | fixed |
| bookworm | 2023.01+dfsg-2+deb12u1 | fixed |
| sid, trixie | 2025.01-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| u-boot | source | buster | (not affected) | | | |
| u-boot | source | bullseye | 2021.01+dfsg-5+deb11u1 | | DLA-4150-1 | |
| u-boot | source | (unstable) | 2022.07+dfsg-1 | | | |
Notes
[buster] - u-boot <not-affected> (SquashFS support added in 2020.10)
https://lists.denx.de/pipermail/u-boot/2022-June/487467.html
https://source.denx.de/u-boot/u-boot/-/commit/7f7fb9937c6cb49dd35153bd6708872b390b0a44 (v2022.07-rc6)