CVE-2021-45939

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-45939
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_WaitType and MqttClient_Subscribe).

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39103 Exploit Issue Tracking Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wolfmqtt/OSV-2021-1361.yaml Exploit Third Party Advisory
https://github.com/wolfSSL/wolfMQTT/commit/84d4b53122e0fa0280c7872350b89d5777dabbb2 Patch Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:wolfssl:wolfmqtt:1.9:*:*:*:*:*:*:*
History

11 Jan 2022, 21:22

Type Values Removed Values Added
CPE cpe:2.3:a:wolfssl:wolfmqtt:1.9:*:*:*:*:*:*:*
First Time Wolfssl
Wolfssl wolfmqtt
References (MISC) https://github.com/wolfSSL/wolfMQTT/commit/84d4b53122e0fa0280c7872350b89d5777dabbb2 - (MISC) https://github.com/wolfSSL/wolfMQTT/commit/84d4b53122e0fa0280c7872350b89d5777dabbb2 - Patch, Third Party Advisory
References (MISC) https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39103 - (MISC) https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39103 - Exploit, Issue Tracking, Third Party Advisory
References (MISC) https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wolfmqtt/OSV-2021-1361.yaml - (MISC) https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wolfmqtt/OSV-2021-1361.yaml - Exploit, Third Party Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 5.5
CWE CWE-787

01 Jan 2022, 01:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-01-01 01:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-45939

Mitre link : CVE-2021-45939

CVE.ORG link : CVE-2021-45939

JSON object : View

Products Affected

wolfssl

  • wolfmqtt
CWE
CWE-787

Out-of-bounds Write