CVE-2017-3226
MEDIUMDescription
Das U-Boot is a device bootloader that can read its configuration from an AES encrypted file. Devices that make use of Das U-Boot's AES-CBC encryption feature using environment encryption (i.e., setting the configuration parameter CONFIG_ENV_AES=y) read environment variables from disk as the encrypted disk image is processed. An attacker with physical access to the device can manipulate the encrypted environment data to include a crafted two-byte sequence which triggers an error in environment variable parsing. This error condition is improperly handled by Das U-Boot, resulting in an immediate process termination with a debugging message.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Low risk: more likely to be exploited than 18% of all known CVEs.
References
Related Vulnerabilities
Other CWE-329 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2014-3566 | Low | 3.4 | 100% | - | Fix |
| CVE-2008-5161 | Low | 3.7 | 15% | - | Fix |
| CVE-2020-5408 | Medium | 6.5 | 1.6% | - | Fix |
| CVE-2022-46397 | High | 7.5 | 0.6% | - | - |
| CVE-2021-27499 | Medium | 5.9 | 0.5% | - | Fix |
| CVE-2017-3225 | Medium | 4.6 | 0.3% | - | Fix |
Common questions
How do I fix CVE-2017-3226?
Upgrade u-boot to 2017.09 or later.
Is CVE-2017-3226 being actively exploited?
Not that we know of. CVE-2017-3226 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.27% is the estimated probability that it will be exploited in the next 30 days. That is higher than 18% of all scored CVEs.
How severe is CVE-2017-3226?
CVE-2017-3226 has a CVSS v3 base score of 6.4, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2017-3226 affect?
Published advisories record a fix for u-boot (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.