CVE-2021-3455

Disconnecting L2CAP channel right after invalid ATT request leads freeze

State: Published
Severity: 4.3 Medium
Published: Oct 19, 2021
Updated: Sep 16, 2024
Reserved: Mar 19, 2021

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

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	zephyr

Weaknesses

CWE-416 Use After Free (CWE-416)

Affected Products

Product	Versions
zephyrzephyrproject-rtos	2.4.0 to before unspecifiedAffected 2.5.0 to before unspecifiedAffected

References

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7g38-3x9v-v7vp

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