CVE-2021-3455

published 2021-10-19

CVE-2021-3455: 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…

Priority P3 35 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

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

Affected

3 ranges

Vendor	Product	Version range	Fixed in
zephyrproject-rtos	zephyr	>= 2.4.0 < unspecified	unspecified
zephyrproject-rtos	zephyr	>= 2.5.0 < unspecified	unspecified
zephyrproject	zephyr	>= 2.4.0 < 2.6.0	2.6.0

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P

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CWE-416