CVE Vulnerabilities

CVE-2021-3329

Improper Initialization

Published: Feb 26, 2023 | Modified: Mar 07, 2023
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

Lack of proper validation in HCI Host stack initialization can cause a crash of the bluetooth stack

Weakness

The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.

Affected Software

Name Vendor Start Version End Version
Zephyr Zephyrproject 2.4.0 (including) 2.4.0 (including)
Zephyr Zephyrproject 2.4.0-rc1 (including) 2.4.0-rc1 (including)
Zephyr Zephyrproject 2.4.0-rc2 (including) 2.4.0-rc2 (including)
Zephyr Zephyrproject 2.4.0-rc3 (including) 2.4.0-rc3 (including)

Potential Mitigations

  • Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, in Java, if the programmer does not explicitly initialize a variable, then the code could produce a compile-time error (if the variable is local) or automatically initialize the variable to the default value for the variable’s type. In Perl, if explicit initialization is not performed, then a default value of undef is assigned, which is interpreted as 0, false, or an equivalent value depending on the context in which the variable is accessed.

References