Browsing Tag
Linux Security
2 posts
Linux security issues, hardening, malware, and incident response.
Januscape KVM Flaw Turns Nested Virtualization Into a Host-Escape Risk
CVE-2026-53359, dubbed Januscape, is a 16-year-old Linux KVM shadow MMU flaw that can let a guest VM crash, and potentially escape to, an x86 host when nested virtualization is exposed. Operators should treat it as a hypervisor-boundary patch event, not a routine kernel update.
The Arch AUR Malware Attack Is a Linux Supply Chain Warning
A June 2026 Arch User Repository compromise hit hundreds of community packages with credential-stealing Linux malware. Arch and Arch-based users should treat recent AUR builds as a security event, not a routine package cleanup.