CVE-2023-1902 — Use After Free in Zephyr

CWE-416 — Use After FreeCWE-672 — Operation on a Resource after Expiration or Release2 documents2 sources
Severity
8.0HIGHNVD
CNA5.9
EPSS
0.2%
top 55.00%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Zephyrproject-rtos ZephyrZephyrproject Zephyr
Timeline
PublishedJul 10

Description

The bluetooth HCI host layer logic not clearing a global reference to a state pointer after handling connection events 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 vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 2.1 | Impact: 5.9

Affected Packages2 packages

▶CVEListV5zephyrproject-rtos/zephyr* — 3.3

🔴Vulnerability Details

1
CVEList
HCI Connection Creation Dangling State Reference Re-use↗2023-07-10
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CVE-2023-1902 — Use After Free in Zephyr | cvebase