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ZephyrCVE-2020-10023

HistoryMay 11, 2020 - 11:15 p.m.

CVE-2020-10023

2020-05-1123:15:11

CWE-120

zephyr

web.nvd.nist.gov

cve-2020-10023

buffer overflow

zephyr kernel

ncc-ncc-019

nvd

security vulnerability

denial of service

code execution

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

6.9

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

0.002

Percentile

58.7%

JSON

The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the device is able to cause a memory corruption, resulting in denial of service or possibly code execution within the Zephyr kernel. See NCC-NCC-019 This issue affects: zephyrproject-rtos zephyr version 1.14.0 and later versions. version 2.1.0 and later versions.

Affected configurations

Nvd

Node

zephyrprojectzephyrMatch1.14.1

zephyrprojectzephyrMatch2.1.0

VendorProductVersionCPE
zephyrprojectzephyr1.14.1cpe:2.3:o:zephyrproject:zephyr:1.14.1:*:*:*:*:*:*:*
zephyrprojectzephyr2.1.0cpe:2.3:o:zephyrproject:zephyr:2.1.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
zephyrproject	zephyr	1.14.1	cpe:2.3:o:zephyrproject:zephyr:1.14.1:::::::*
zephyrproject	zephyr	2.1.0	cpe:2.3:o:zephyrproject:zephyr:2.1.0:::::::*

CNA Affected

[
  {
    "product": "zephyr",
    "vendor": "zephyrproject-rtos",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "1.14.0",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "2.1.0",
        "versionType": "custom"
      }
    ]
  }
]

References

docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10023

github.com/zephyrproject-rtos/zephyr/pull/23304

github.com/zephyrproject-rtos/zephyr/pull/23646

github.com/zephyrproject-rtos/zephyr/pull/23649

zephyrprojectsec.atlassian.net/browse/ZEPSEC-29

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

6.9

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

0.002

Percentile

58.7%

JSON

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