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CVE-2020-13600— Malformed SPI in response for eswifi can corrupt kernel memory

Quick assessment

Affected
zephyrproject-rtos zephyr
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zephyr是美国Linux基金会的一套开源的小型的可缩放的实时操作系统。 Zephyr >= 1.14.2和>= 2.3.0版本存在安全漏洞，该漏洞源于响应eswifi的畸形SPI会破坏内核内存。能够干扰主机与目标SoC之间的物理SPI总线的本地攻击者可以通过发送格式错误的SPI响应破坏主机MCU中的内核内存，从而实现具有内核特权的本地代码执行。

CVSS 7.0 · High EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-13600

Vulnerability Information
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Vulnerability Title
Malformed SPI in response for eswifi can corrupt kernel memory
Source: CVE Program / CVE List V5
Vulnerability Description
Malformed SPI in response for eswifi can corrupt kernel memory. Zephyr versions >= 1.14.2, >= 2.3.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hx4p-j86p-2mhr
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Zephyr 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zephyr是美国Linux基金会的一套开源的小型的可缩放的实时操作系统。 Zephyr >= 1.14.2和>= 2.3.0版本存在安全漏洞，该漏洞源于响应eswifi的畸形SPI会破坏内核内存。能够干扰主机与目标SoC之间的物理SPI总线的本地攻击者可以通过发送格式错误的SPI响应破坏主机MCU中的内核内存，从而实现具有内核特权的本地代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
zephyrproject-rtos zephyr 1.14.2 ~ unspecified -

II. Public POCs for CVE-2020-13600

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III. Intelligence Information for CVE-2020-13600

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Vendor Advisories for CVE-2020-13600 (1)

Same Patch Batch · zephyrproject-rtos · 2021-05-24 · 12 CVEs total

CVE-2020-13601 9.0 CRITICAL Possible read out of bounds in dns read
CVE-2020-10064 8.3 HIGH Improper Input Frame Validation in ieee802154 Processing
CVE-2020-13603 6.9 MEDIUM Integer Overflow in memory allocating functions
CVE-2020-13598 6.3 MEDIUM FS: Buffer Overflow when enabling Long File Names in FAT_FS and calling fs_stat
CVE-2021-3320 5.9 MEDIUM Type Confusion in 802154 ACK Frames Handling
CVE-2020-10072 5.9 MEDIUM Improper Handling of Insufficient Permissions or Privileges in zephyr
CVE-2020-10069 4.3 MEDIUM Zephyr Bluetooth unchecked packet data results in denial of service
CVE-2020-13602 4.0 MEDIUM Remote Denial of Service in LwM2M do_write_op_tlv
CVE-2020-10065 3.8 LOW Missing Size Checks in Bluetooth HCI over SPI
CVE-2020-13599 3.3 LOW Security problem with settings and littlefs
CVE-2020-10066 2.5 LOW Incorrect Error Handling in Bluetooth HCI core

IV. Related Vulnerabilities

Same product: zephyr
Same vendor: zephyrproject-rtos
Same weakness: CWE-122

V. Comments for CVE-2020-13600

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