CVE-2023-1901: medium-severity vulnerability in zephyrproject-rtos Zephyr
HCI send_sync Dangling Semaphore Reference Re-use
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.6%
The bluetooth HCI host layer logic not clearing a global reference to a semaphore after synchronously sending HCI commands may allow a malicious HCI Controller to cause the use of a dangling reference in the host layer, leading to a crash (DoS) or potential RCE on the Host layer.
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Affected products
zephyrproject-rtos · ZephyrRelated CVEs — zephyrproject-rtos Zephyr
In the same product, most dangerous first.
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