CVE-2020-13602— Remote Denial of Service in LwM2M do_write_op_tlv
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I. Basic Information for CVE-2020-13602
Vulnerability Information
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Vulnerability Title
Remote Denial of Service in LwM2M do_write_op_tlv
Source: NVD (National Vulnerability Database)
Vulnerability Description
Remote Denial of Service in LwM2M do_write_op_tlv. Zephyr versions >= 1.14.2, >= 2.2.0 contain Improper Input Validation (CWE-20), Loop with Unreachable Exit Condition ('Infinite Loop') (CWE-835). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-g9mg-fj58-6fqh
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Zephyr 安全漏洞
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 >= v1.14.2和>= v2.2.0版本存在安全漏洞，该漏洞源于在Zephyr LwM2M实现中，格式错误的输入可能导致无限循环，从而导致拒绝服务攻击。
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-2020-13602
| # | POC Description | Source Link | Shenlong Link |
|---|
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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-2020-13600 | 7.0 HIGH | Malformed SPI in response for eswifi can corrupt kernel memory |
| 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-2020-10065 | 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
- CVE-2026-1677
net: TLS 1.2 connections allowed on TLS 1.3 sockets - CVE-2026-5590
net: ip/tcp: Null pointer dereference can be triggered by a - CVE-2026-1679
net: eswifi socket send payload length not bounded - CVE-2026-4179
stm32: usb: Infinite while loop in Interrupt Handler - CVE-2026-0849
crypto: ATAES132A response length allows stack buffer overfl
Same vendor: zephyrproject-rtos
- CVE-2026-1677
net: TLS 1.2 connections allowed on TLS 1.3 sockets - CVE-2026-5590
net: ip/tcp: Null pointer dereference can be triggered by a - CVE-2026-1679
net: eswifi socket send payload length not bounded - CVE-2026-4179
stm32: usb: Infinite while loop in Interrupt Handler - CVE-2026-0849
crypto: ATAES132A response length allows stack buffer overfl
Same weakness: CWE-20
V. Comments for CVE-2020-13602
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