Vulnerability in Das U-Boot
CVE-2017-3225
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (22.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Das U-Boot — versions 2017.09
- Denx U-Boot
Weakness classification (CWE)
References
- www.securityfocus.com/bid/100675 (VDB Entry, Third Party Advisory, vdb-entry)
- www.kb.cert.org/vuls/id/166743 (US Government Resource, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2017-3225?
- CVE-2017-3225 is a medium-severity vulnerability in Das U-Boot, classified under Generation of Predictable IV with CBC Mode. CVSS score: 4.6/10. Published 2018-07-24.
- How severe is CVE-2017-3225?
- Medium severity. CVSS v3 base score is 4.6 out of 10.