漏洞信息
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Vulnerability Title
can: Local Denial of Service via SocketCAN Send
Vulnerability Description
The SocketCAN implementation validates the length of a user-provided buffer containing a socketcan_frame object using only a NET_ASSERT statement in zcan_sendto_ctx() before dereferencing it in socketcan_to_can_frame(). In production builds where assertions are disabled, a userspace application that controls the length passed to a sendto syscall can supply an incomplete or truncated frame, causing socketcan_to_can_frame() to dereference fields beyond the end of the buffer. This results in an out-of-bounds read that can cause denial-of-service crashes or, because the parsed frame contents are transmitted on the network, leak adjacent memory.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
Vulnerability Type
跨界内存读
Vulnerability Title
Zephyr 安全漏洞
Vulnerability Description
Zephyr是Zephyr开源的一个可扩展的实时操作系统 (RTOS)。 Zephyr存在安全漏洞,该漏洞源于zcan_sendto_ctx中仅使用NET_ASSERT验证缓冲区长度,在生产构建中断言禁用时可能导致越界读取,造成拒绝服务崩溃或泄露相邻内存。
CVSS Information
N/A
Vulnerability Type
N/A