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CVE-2021-3455

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CVE-2021-3455

Published: Oct 19, 2021

Modified: Sep 16, 2024

PUBLISHED

CVSS v3.1

4.3

MEDIUM

Description

Disconnecting L2CAP channel right after invalid ATT request leads freeze. Zephyr versions >= 2.4.0, >= 2.5.0 contain Use After Free (CWE-416). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7g38-3x9v-v7vp

VendorProductVersions

zephyrproject-rtos

zephyr

affected
2.4.0 - < unspecified
affected
2.5.0 - < unspecified

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

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CVE-2021-3455 | MEDIUM (4.3) - Security Vulnerability | QwikSec