CVE-2020-10071
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
The Zephyr MQTT parsing code performs insufficient checking of the length field on publish messages, allowing a buffer overflow and potentially remote code execution. NCC-ZEP-031 This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.
Overview
- CVE ID
- CVE-2020-10071
- Assigner
- vulnerabilities@zephyrproject.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-06-05T18:15:13
- Last Modified Date
- 2020-06-12T14:28:45
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:* | 1 | OR | 2.2.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10071 | Vendor Advisory |
| https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-86 | Third Party Advisory |
| https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/989c4713ba429aa5105fe476b4d629718f3e6082 | Patch Third Party Advisory |
| https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessment | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-10071 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10071 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:28:20 | Added to TrackCVE | |||
| 2022-12-04 17:29:26 | 2020-06-05T18:15Z | 2020-06-05T18:15:13 | CVE Published Date | updated |
| 2022-12-04 17:29:26 | 2020-06-12T14:28:45 | CVE Modified Date | updated | |
| 2022-12-04 17:29:26 | Analyzed | Vulnerability Status | updated |