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

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2021-21410
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 in the 6LoWPAN implementation
Source: NVD (National Vulnerability Database)
Vulnerability Description
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds read can be triggered by 6LoWPAN packets sent to devices running Contiki-NG 4.6 and prior. The IPv6 header decompression function (<code>uncompress_hdr_iphc</code>) does not perform proper boundary checks when reading from the packet buffer. Hence, it is possible to construct a compressed 6LoWPAN packet that will read more bytes than what is available from the packet buffer. As of time of publication, there is not a release with a patch available. Users can apply the patch for this vulnerability out-of-band as a workaround.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
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 存在缓冲区错误漏洞,该漏洞源于在4.6及以上版本的设备的6LoWPAN报文会触发读越界。攻击者可利用该漏洞构造一个压缩的6LoWPAN包,它将读取比包缓冲区中可用的字节更多的字节。
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
VendorProductAffected VersionsCPESubscribe
contiki-ngcontiki-ng <= 4.6 -
II. Public POCs for CVE-2021-21410
#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC
III. Intelligence Information for CVE-2021-21410
Please Login to view more intelligence information
IV. Related Vulnerabilities
V. Comments for CVE-2021-21410

No comments yet


Leave a comment