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CVE-2020-10023— Shell Subsystem Contains a Buffer Overflow Vulnerability In shell_spaces_trim

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 1.14.0及之后版本（1.14.2版本已修复）和2.1.0及之后版本（2.2.0版本已修复）中的shell子系统存在缓冲区错误漏洞。攻击者可利用该漏洞导致拒绝服务或执行代码（内存损坏）。

CVSS 6.9 · Medium EPSS 0.47% · P39
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I. Basic Information for CVE-2020-10023

Vulnerability Information
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Vulnerability Title
Shell Subsystem Contains a Buffer Overflow Vulnerability In shell_spaces_trim
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
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 1.14.0及之后版本（1.14.2版本已修复）和2.1.0及之后版本（2.2.0版本已修复）中的shell子系统存在缓冲区错误漏洞。攻击者可利用该漏洞导致拒绝服务或执行代码（内存损坏）。
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 1.14.0 ~ unspecified -

II. Public POCs for CVE-2020-10023

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III. Intelligence Information for CVE-2020-10023

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Patches & Fixes for CVE-2020-10023 (3)

Other References for CVE-2020-10023 (2)

Same Patch Batch · zephyrproject-rtos · 2020-05-11 · 11 CVEs total

CVE-2020-10022 9.0 CRITICAL UpdateHub Module Copies a Variable-Size Hash String Into a Fixed-Size Array
CVE-2020-10019 8.1 HIGH Buffer Overflow in USB DFU requested length
CVE-2020-10021 8.1 HIGH Out-of-bounds write in USB Mass Storage with unaligned sizes
CVE-2020-10060 8.0 HIGH UpdateHub Might Dereference An Uninitialized Pointer
CVE-2020-10024 7.8 HIGH ARM Platform Uses Signed Integer Comparison When Validating Syscall Numbers
CVE-2020-10027 7.8 HIGH ARC Platform Uses Signed Integer Comparison When Validating Syscall Numbers
CVE-2020-10028 7.8 HIGH Multiple Syscalls In GPIO Subsystem Performs No Argument Validation
CVE-2020-10058 7.8 HIGH Multiple Syscalls In kscan Subsystem Performs No Argument Validation
CVE-2020-10067 7.5 HIGH Integer Overflow In is_in_region Allows User Thread To Access Kernel Memory
CVE-2020-10059 4.8 MEDIUM UpdateHub Module Explicitly Disables TLS Verification

IV. Related Vulnerabilities

Same product: zephyr
Same vendor: zephyrproject-rtos
Same weakness: CWE-120

V. Comments for CVE-2020-10023

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