CVE-2022-40279

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-09-29 · updated 2026-06-17
Weakness: CWE-252

Description

An issue was discovered in Samsung TizenRT through 3.0_GBM (and 3.1_PRE). l2_packet_receive_timeout in wpa_supplicant/src/l2_packet/l2_packet_pcap.c has a missing check on the return value of pcap_dispatch, leading to a denial of service (malfunction).

Affected products

Tizen RT RTOS: 1.0-m1, 1.1, 2.0-gbm_m1, 2.0-m2, 3.0-gbm, 3.1-pre

References

https://github.com/Samsung/TizenRT/blob/f8f776dd183246ad8890422c1ee5e8f33ab2aaaf/external/wpa_supplicant/src/l2_packet/l2_packet_pcap.c#L181
https://github.com/Samsung/TizenRT/issues/5629
https://linux.die.net/man/3/pcap_dispatch
https://github.com/Samsung/TizenRT/blob/f8f776dd183246ad8890422c1ee5e8f33ab2aaaf/external/wpa_supplicant/src/l2_packet/l2_packet_pcap.c#L181
https://github.com/Samsung/TizenRT/issues/5629
https://linux.die.net/man/3/pcap_dispatch

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