Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-37281— Out-of-bounds read during IPHC address decompression

Quick assessment

Affected
contiki-ng contiki-ng
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.

Contiki-NG是一套用于下一代IoT（物联网）设备的开源跨平台操作系统。 Contiki-NG 4.9及之前版本存在缓冲区错误漏洞，该漏洞源于允许攻击者注入数据包导致缓冲区越界读取。

CVSS 5.3 · Medium EPSS 0.46% · P40
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-37281

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Out-of-bounds read during IPHC address decompression
Source: CVE Program / CVE List V5
Vulnerability Description
Contiki-NG is an operating system for internet-of-things devices. In versions 4.9 and prior, when processing the various IPv6 header fields during IPHC header decompression, Contiki-NG confirms the received packet buffer contains enough data as needed for that field. But no similar check is done before decompressing the IPv6 address. Therefore, up to 16 bytes can be read out of bounds on the line with the statement `memcpy(&ipaddr->u8[16 - postcount], iphc_ptr, postcount);`. The value of `postcount` depends on the address compression used in the received packet and can be controlled by the attacker. As a result, an attacker can inject a packet that causes an out-of-bound read. As of time of publication, a patched version is not available. As a workaround, one can apply the changes in Contiki-NG pull request #2509 to patch the system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Contiki-NG 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Contiki-NG是一套用于下一代IoT（物联网）设备的开源跨平台操作系统。 Contiki-NG 4.9及之前版本存在缓冲区错误漏洞，该漏洞源于允许攻击者注入数据包导致缓冲区越界读取。
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
contiki-ng contiki-ng <= 4.9 -

II. Public POCs for CVE-2023-37281

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-37281

请登录查看更多情报信息。

Patches & Fixes for CVE-2023-37281 (1)

Vendor Advisories for CVE-2023-37281 (1)

IV. Related Vulnerabilities

Same product: contiki-ng
Same vendor: contiki-ng
Same weakness: CWE-125