CVE-2021-3320 — NULL Pointer Dereference in Zephyr

CWE-476 — NULL Pointer DereferenceCWE-843 — Type Confusion2 documents2 sources
Severity
7.5HIGHNVD
CNA5.9
EPSS
0.3%
top 43.53%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Zephyrproject-rtos ZephyrZephyrproject Zephyr
Timeline
Latest updateMay 24
PublishedMay 25

Description

Type Confusion in 802154 ACK Frames Handling. Zephyr versions >= v2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxch-2hm7

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5zephyrproject-rtos/zephyrv2.4.0 — unspecified
▶NVDzephyrproject/zephyr2.0.0 — 2.4.0

🔴Vulnerability Details

1
CVEList
Type Confusion in 802154 ACK Frames Handling↗2021-05-24
▶
CVE-2021-3320 — NULL Pointer Dereference in Zephyr | cvebase