Denial-of-Service (DoS)
Best of 2025: NOT-So-Great Firewall: China Blocks the Web for 74 Min.
HTTPS connections on port 443 received forged  replies. Chinese web users couldn’t access websites outside the People’s Republic yesterday. The outage lasted an hour and a quarter—with no explanation. Nobody’s sure whether it ...
NOT-So-Great Firewall: China Blocks the Web for 74 Min.
Xi Whiz: HTTPS connections on port 443 received forged replies ...
kvmCTF: Google’s $250K Bounty for KVM Zero-Day Vulnerabilities
In October 2023, Google announced the launch of kvmCTF, a new vulnerability reward program (VRP) designed to improve the security of the Kernel-based Virtual Machine (KVM) hypervisor. This innovative program comes with ...
Several Linux Kernel Azure Vulnerabilities Fixed in Ubuntu
Recently, Canonical released security updates to address several vulnerabilities in the Linux kernel for Microsoft Azure Cloud systems in Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. An attacker could possibly use these ...
Patch Squid Vulnerabilities Affecting Ubuntu 16.04/18.04
Several security issues were discovered in Squid, a web proxy cache server. These vulnerabilities have a high severity score and could lead to denial of service or exposure of sensitive information. The ...
Several libheif Vulnerabilities Fixed in Ubuntu
libheif is a library that allows you to work with HEIF (High Efficiency Image File Format) and AVIF (AV1 Image File Format) images. Recently, Canonical released Ubuntu security updates to address multiple ...
Multiple Linux Kernel Vulnerabilities Lead to Denial of Service
Several vulnerabilities have been identified in the Linux kernel, potentially leading to denial of service or privilege escalation. However, the good news is the patches are already available for them. Ubuntu and ...
Recent glibc Vulnerabilities and How to Protect Your Linux System
The GNU C Library, commonly known as glibc, is a critical component in many Linux distributions. It provides core functions essential for system operations. However, like any software library, it is not ...
Critical Fluent Bit Vulnerability Affects Major Cloud Providers
Researchers have identified a critical memory corruption vulnerability in Fluent Bit, a popular logging and metrics utility. Dubbed Linguistic Lumberjack, this flaw exists in Fluent Bit’s embedded HTTP server, specifically in the ...
VMware Workstation and Fusion: Critical Security Flaws Fixed
VMware, a leading virtualization technology company, has fixed multiple security vulnerabilities found in VMware Workstation and Fusion products. These flaws, if exploited, could allow attackers to cause a denial of service, obtain ...
