| Name | CVE-2017-3225 |
| Description | Das U-Boot is a device bootloader that can read its configuration from an AES encrypted file. For devices utilizing this environment encryption mode, U-Boot's use of a zero initialization vector may allow attacks against the underlying cryptographic implementation and allow an attacker to decrypt the data. Das U-Boot's AES-CBC encryption feature uses a zero (0) initialization vector. This allows an attacker to perform dictionary attacks on encrypted data produced by Das U-Boot to learn information about the encrypted data. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| u-boot (PTS) | jessie | 2014.10+dfsg1-5 | vulnerable |
| stretch | 2016.11+dfsg1-4 | vulnerable |
| buster | 2019.01+dfsg-7 | vulnerable |
| bullseye | 2021.01+dfsg-5 | vulnerable |
| bookworm | 2023.01+dfsg-2+deb12u1 | vulnerable |
| sid, trixie | 2024.01+dfsg-5 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| u-boot | source | wheezy | (not affected) | | | |
| u-boot | source | (unstable) | (unfixed) | unimportant | | |
Notes
[wheezy] - u-boot <not-affected> (Vulnerable code do not exist)
jessie+ no built targets use ENV_AES by default, but fw_printenv/fw_setenv
in u-boot-tools supports it. Upstream has deprecated it and plans to remove
it in future versions.
https://www.kb.cert.org/vuls/id/166743
Negligible security impact