amradio

AM无线电广播入侵系统 一套12通道AM无线电广播系统，使用Red Pitaya FPGA在无人隧道中传输紧急警报。 为什么在隧道中使用AM无线电？ 在施工和维护期间，配备标准AM收音机的车辆会穿越没有移动网络覆盖的隧道。AM信号通过泄漏馈线电缆沿隧道结构传播，接收器廉价、坚固且已存在于每辆车中。该系统在多个频率上广播预录的紧急警报，使得调谐到该频段任何电台的任何AM收音机都能接收到消息。硬件看门狗确保在控制系统故障时切断射频输出——因为在无人隧道中自动重启发射机是不可接受的故障模式。 特性 功能| 状态 ---|--- 12路同步载波频率| ✅ 运行时频率配置（无需硬件变更）| ✅...

Tengu Botnet Reboots Compromised Linux Devices When Defenders Kill Its Process

A new Mirai-derived botnet called Tengu can use a compromised Linux device's hardware watchdog to trigger a reboot when defenders kill its main process. If that happens, Tengu's other persistence mechanisms get another chance to relaunch it. Nozomi Networks Labs observed the dropper reaching its...

K13114: Apache Range header vulnerability - CVE-2011-3192

Security Advisory Description The byte-range filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial-of-service memory and CPU consumption using aRange header that expresses multiple overlapping ranges. When this vulnerabili...

Fedora: Security Advisory for watchdog (FEDORA-2021-4cf4b682e8)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

[SECURITY] Fedora 35 Update: watchdog-5.16-2.fc35

The watchdog program can be used as a powerful software watchdog daemon or may be alternately used with a hardware watchdog device such as the IPMI hardware watchdog driver interface to a resident Baseboard Management Controller BMC. watchdog periodically writes to /dev/watchdog; the interval...

[SECURITY] Fedora 34 Update: watchdog-5.16-2.fc34

The watchdog program can be used as a powerful software watchdog daemon or may be alternately used with a hardware watchdog device such as the IPMI hardware watchdog driver interface to a resident Baseboard Management Controller BMC. watchdog periodically writes to /dev/watchdog; the interval...

[SECURITY] Fedora 33 Update: watchdog-5.16-2.fc33

The watchdog program can be used as a powerful software watchdog daemon or may be alternately used with a hardware watchdog device such as the IPMI hardware watchdog driver interface to a resident Baseboard Management Controller BMC. watchdog periodically writes to /dev/watchdog; the interval...

SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:0625-1)

This update for qemu fixes several issues. These security issues were fixed : - CVE-2017-5898: The CCID Card device emulator support was vulnerable to an integer overflow flaw allowing a privileged user to crash the Qemu process on the host resulting in DoS bsc1023907. - CVE-2017-5857: The Virtio...

SOL13114 - Apache Range header vulnerability - CVE-2011-3192

The byte-range filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial-of-service memory and CPU consumption using a Range header that expresses multiple overlapping ranges. When this vulnerability is exploited, the httpd...