漏洞信息
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Vulnerability Title
U-Boot 2026.04-rc3 Out-of-Bounds Read in tcp_rx_state_machine via tcp.c
Vulnerability Description
U-Boot through 2026.04-rc3 contains an out-of-bounds read vulnerability in tcp_rx_state_machine() (net/tcp.c) when CONFIG_PROT_TCP is enabled, allowing remote attackers to read beyond TCP segment boundaries by crafting a malicious packet with a mismatched IP total length and TCP data offset field. Attackers can send a packet with an IP total length of 40 bytes and a TCP data offset claiming 60 bytes of header to cause tcp_parse_options() to read 40 bytes past the end of the TCP segment, potentially corrupting connection state variables such as rmt_win_scale and rmt_timestamp to disrupt TCP window calculations.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Vulnerability Type
跨界内存读
Vulnerability Title
U-Boot 缓冲区错误漏洞
Vulnerability Description
U-Boot U-Boot是U-Boot社区开源的一个免费、开源且可扩展的引导加载程序,适用于多种架构(ARM、MIPS、PowerPC、RISC-V、x86、x86_64),其目的是执行各种硬件初始化任务并启动设备的操作系统内核。 U-Boot 2026.04-rc3版本及之前版本存在缓冲区错误漏洞,该漏洞源于tcp_rx_state_machine()函数存在越界读取漏洞,允许远程攻击者通过发送IP总长度和TCP数据偏移字段不匹配的恶意数据包,读取TCP段边界之外的数据,可能破坏连接状态变量并扰乱TC
CVSS Information
N/A
Vulnerability Type
N/A