Qemu-kvm: stack buffer overflow in e1000 device via short frames in loopback mode

A stack-based buffer overflow was found in the QEMU e1000 network device. The code for padding short frames was dropped from individual network devices and moved to the net core code. The issue stems from the device's receive code still being able to process a short frame in loopback mode. This could lead to a buffer overrun in the e1000_receive_iov() function via the loopback code path. A malicious guest user could use this vulnerability to crash the QEMU process on the host, resulting in a denial of service.

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

栈缓冲区溢出

Red Hat Enterprise Linux 10 安全漏洞

Red Hat Enterprise Linux 10是美国红帽（Red Hat）公司的一套面向企业用户的Linux操作系统。 Red Hat Enterprise Linux 10存在安全漏洞，该漏洞源于设备接收代码仍能处理环回模式下的短帧，可能导致e1000_receive_iov函数出现栈缓冲区溢出，造成拒绝服务。

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