CVE-2021-3455CWE-416

Disconnecting L2CAP channel right after invalid ATT request leads freeze

Medium · published October 19, 2021

CVSS v3.1
4.3
EPSS
1%
Percentile
65.6
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.01106 · 65.6th percentile
Weakness
CWE-416 · Use After Free
Published
2021-10-19T22:25Z
EPSS history
Timeline
  • 19 OCT 22:25Z
    Disconnecting L2CAP channel right after invalid ATT request leads freeze
    cvelistv5