PT-2014-3988 · Google · Little Kernel (Lk) Bootloader

Published 2014-08-25 · Updated 2016-07-13 · CVE-2014-0973

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Little Kernel (LK) bootloader (affected versions not specified)

Description The issue is related to the image verify function in the Little Kernel (LK) bootloader, which does not properly check the digest size consistency with the RSA public decrypt API specification. This inconsistency makes it easier for attackers to bypass boot-image authentication requirements by appending trailing data.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2014-0973

Affected Products

Little Kernel (Lk) Bootloader

References · 3

• https://codeaurora.org/projects/security-advisories/incomplete-signature-parsing-during-boot-image-authentication-leads-to-signature-forgery-cve-2014-0973 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2014-0973 · Security Note
• http://source.android.com/security/bulletin/2016-07-01.html · Note