by Kastro
Paper/Archive/CVE-2021-3329

CVE-2021-3329

zephyrproject-rtos zephyr — DOS: Incorrect handling of the initial HCI ACL_MTU handshake packet leads to crash of bluetooth host layer

EPSS 0.6%CVSS 9.6
critical.is priorityof 100
39
CVSS 9.6 (CNA)9.6 / 10 × 3028.8Not in CISA KEV+300.0EPSS percentile 49.5.495 × 209.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

Affected

ProductAffectedFixed inSource
zephyrunspecified – v2.4–CNA

Scores by source

zephyr (CNA)9.6CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refzephyrprojectsec.atlassian.net/browse/ZEPSEC-117