IPHC 地址解压缩期间越界读取 (CVE-2023-37281)
CVE编号
CVE-2023-37281利用情况
暂无补丁情况
N/A披露时间
2023-06-29漏洞描述
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.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| https://github.com/contiki-ng/contiki-ng/pull/2509 | |
| https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-2v4c-9p48-g9pr |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 系统 | contiki-ng | contiki-ng | * | Up to (including) 4.9 | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 无
- 影响范围 未更改
- 用户交互 无
- 可用性 无
- 保密性 低
- 完整性 无
| CWE-ID | 漏洞类型 |
| CWE-125 | 跨界内存读 |
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