CVE-2018-3968

State: Published
Severity: 8.2 High
Published: Mar 21, 2019
Updated: Aug 5, 2024
Reserved: Jan 2, 2018

Description

An exploitable vulnerability exists in the verified boot protection of the Das U-Boot from version 2013.07-rc1 to 2014.07-rc2. The affected versions lack proper FIT signature enforcement, which allows an attacker to bypass U-Boot's verified boot and execute an unsigned kernel, embedded in a legacy image format. To trigger this vulnerability, a local attacker needs to be able to supply the image to boot.

Scores

CVSS	Score	Vector	Source
3.0	8.2 High	CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H	talos

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
Das U-Bootn/a	Das U-Boot 2013.07-rc1 to 2014.07-rc2 OCTEON-SDK 3.1.2 to 5.1 CUJO Smart Firewall - Firmware version 7003Affected

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0633

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