CVE-2021-45937

CVSS V2 Medium 4.3 CVSS V3 Medium 5.5
Description
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_WaitType and MqttClient_Connect).
Overview
  • CVE ID
  • CVE-2021-45937
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-01-01T01:15:08
  • Last Modified Date
  • 2022-01-11T21:17:38
Weakness Enumerations
CWE URL
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:wolfssl:wolfmqtt:1.9:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/wolfSSL/wolfMQTT/commit/84d4b53122e0fa0280c7872350b89d5777dabbb2 Patch Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wolfmqtt/OSV-2021-1349.yaml Exploit Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39083 Exploit Issue Tracking Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-45937
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45937
History
Created Old Value New Value Data Type Notes
2022-05-10 06:37:46 Added to TrackCVE
2022-12-06 05:26:10 2022-01-01T01:15Z 2022-01-01T01:15:08 CVE Published Date updated
2022-12-06 05:26:10 2022-01-11T21:17:38 CVE Modified Date updated
2022-12-06 05:26:10 Analyzed Vulnerability Status updated