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[email protected]NVD:CVE-2021-45934

HistoryJan 01, 2022 - 1:15 a.m.

CVE-2021-45934

2022-01-0101:15:08

CWE-787

[email protected]

web.nvd.nist.gov

cve-2021-45934

mqttclient_decodepacket

mqttclient_handlepacket

mqttclient_waittype

buffer overflow

wolfssl

wolfmqtt

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.002

Percentile

52.9%

JSON

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

Affected configurations

Nvd

Node

wolfsslwolfmqttMatch1.9

VendorProductVersionCPE
wolfsslwolfmqtt1.9cpe:2.3:a:wolfssl:wolfmqtt:1.9:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
wolfssl	wolfmqtt	1.9	cpe:2.3:a:wolfssl:wolfmqtt:1.9:::::::*

References

bugs.chromium.org/p/oss-fuzz/issues/detail?id=38146

github.com/google/oss-fuzz-vulns/blob/main/vulns/wolfmqtt/OSV-2021-1204.yaml

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

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.002

Percentile

52.9%

JSON

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