CVE-2021-45932

2021-12-3123:58:39

mitre

www.cve.org

wolfssl

wolfmqtt

heap-based buffer overflow

mqttdecode_publish

mqttclient_decodepacket

mqttclient_handlepacket

AI Score

6.1

Confidence

High

EPSS

0.002

Percentile

52.9%

JSON

wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow (4 bytes) in MqttDecode_Publish (called from MqttClient_DecodePacket and MqttClient_HandlePacket).

References

bugs.chromium.org/p/oss-fuzz/issues/detail?id=37866

github.com/google/oss-fuzz-vulns/blob/main/vulns/wolfmqtt/OSV-2021-1188.yaml

github.com/wolfSSL/wolfMQTT/commit/84d4b53122e0fa0280c7872350b89d5777dabbb2