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ZephyrCVELIST:CVE-2020-10019

HistoryMay 11, 2020 - 10:26 p.m.

CVE-2020-10019 Buffer Overflow in USB DFU requested length

2020-05-1122:26:11

CWE-120

zephyr

www.cve.org

CVSS3

8.1

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.3

Confidence

High

EPSS

0.001

Percentile

19.0%

JSON

USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.

CNA Affected

[
  {
    "product": "zephyr",
    "vendor": "zephyrproject-rtos",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "1.14.1",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "2.1.0",
        "versionType": "custom"
      }
    ]
  }
]

References

docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10019

github.com/zephyrproject-rtos/zephyr/pull/23190

github.com/zephyrproject-rtos/zephyr/pull/23457

github.com/zephyrproject-rtos/zephyr/pull/23460

zephyrprojectsec.atlassian.net/browse/ZEPSEC-25

CVSS3

8.1

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.3

Confidence

High

EPSS

0.001

Percentile

19.0%

JSON

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