Vulnerability Information
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Vulnerability Title
Out-of-bounds read when processing a received IPv6 packet
Vulnerability Description
Contiki-NG is an operating system for internet-of-things devices. In versions 4.9 and prior, when a packet is received, the Contiki-NG network stack attempts to start the periodic TCP timer if it is a TCP packet with the SYN flag set. But the implementation does not first verify that a full TCP header has been received. Specifically, the implementation attempts to access the flags field from the TCP buffer in the following conditional expression in the `check_for_tcp_syn` function. For this reason, an attacker can inject a truncated TCP packet, which will lead to an out-of-bound read from the packet buffer. As of time of publication, a patched version is not available. As a workaround, one can apply the changes in Contiki-NG pull request #2510 to patch the system.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Vulnerability Type
跨界内存读
Vulnerability Title
Contiki-NG 缓冲区错误漏洞
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TCP数据包导致缓冲区越界读取。
CVSS Information
N/A
Vulnerability Type
N/A